/*  Prototype JavaScript framework, version 1.6.0.3
 *  (c) 2005-2008 Sam Stephenson
 *
 *  Prototype is freely distributable under the terms of an MIT-style license.
 *  For details, see the Prototype web site: http://www.prototypejs.org/
 *
 *--------------------------------------------------------------------------*/

var Prototype = {
  Version: '1.6.0.3',

  Browser: {
    IE:     !!(window.attachEvent &&
      navigator.userAgent.indexOf('Opera') === -1),
    Opera:  navigator.userAgent.indexOf('Opera') > -1,
    WebKit: navigator.userAgent.indexOf('AppleWebKit/') > -1,
    Gecko:  navigator.userAgent.indexOf('Gecko') > -1 &&
      navigator.userAgent.indexOf('KHTML') === -1,
    MobileSafari: !!navigator.userAgent.match(/Apple.*Mobile.*Safari/)
  },

  BrowserFeatures: {
    XPath: !!document.evaluate,
    SelectorsAPI: !!document.querySelector,
    ElementExtensions: !!window.HTMLElement,
    SpecificElementExtensions:
      document.createElement('div')['__proto__'] &&
      document.createElement('div')['__proto__'] !==
        document.createElement('form')['__proto__']
  },

  ScriptFragment: '<script[^>]*>([\\S\\s]*?)<\/script>',
  JSONFilter: /^\/\*-secure-([\s\S]*)\*\/\s*$/,

  emptyFunction: function() { },
  K: function(x) { return x }
};

if (Prototype.Browser.MobileSafari)
  Prototype.BrowserFeatures.SpecificElementExtensions = false;


/* Based on Alex Arnell's inheritance implementation. */
var Class = {
  create: function() {
    var parent = null, properties = $A(arguments);
    if (Object.isFunction(properties[0]))
      parent = properties.shift();

    function klass() {
      this.initialize.apply(this, arguments);
    }

    Object.extend(klass, Class.Methods);
    klass.superclass = parent;
    klass.subclasses = [];

    if (parent) {
      var subclass = function() { };
      subclass.prototype = parent.prototype;
      klass.prototype = new subclass;
      parent.subclasses.push(klass);
    }

    for (var i = 0; i < properties.length; i++)
      klass.addMethods(properties[i]);

    if (!klass.prototype.initialize)
      klass.prototype.initialize = Prototype.emptyFunction;

    klass.prototype.constructor = klass;

    return klass;
  }
};

Class.Methods = {
  addMethods: function(source) {
    var ancestor   = this.superclass && this.superclass.prototype;
    var properties = Object.keys(source);

    if (!Object.keys({ toString: true }).length)
      properties.push("toString", "valueOf");

    for (var i = 0, length = properties.length; i < length; i++) {
      var property = properties[i], value = source[property];
      if (ancestor && Object.isFunction(value) &&
          value.argumentNames().first() == "$super") {
        var method = value;
        value = (function(m) {
          return function() { return ancestor[m].apply(this, arguments) };
        })(property).wrap(method);

        value.valueOf = method.valueOf.bind(method);
        value.toString = method.toString.bind(method);
      }
      this.prototype[property] = value;
    }

    return this;
  }
};

var Abstract = { };

Object.extend = function(destination, source) {
  for (var property in source)
    destination[property] = source[property];
  return destination;
};

Object.extend(Object, {
  inspect: function(object) {
    try {
      if (Object.isUndefined(object)) return 'undefined';
      if (object === null) return 'null';
      return object.inspect ? object.inspect() : String(object);
    } catch (e) {
      if (e instanceof RangeError) return '...';
      throw e;
    }
  },

  toJSON: function(object) {
    var type = typeof object;
    switch (type) {
      case 'undefined':
      case 'function':
      case 'unknown': return;
      case 'boolean': return object.toString();
    }

    if (object === null) return 'null';
    if (object.toJSON) return object.toJSON();
    if (Object.isElement(object)) return;

    var results = [];
    for (var property in object) {
      var value = Object.toJSON(object[property]);
      if (!Object.isUndefined(value))
        results.push(property.toJSON() + ': ' + value);
    }

    return '{' + results.join(', ') + '}';
  },

  toQueryString: function(object) {
    return $H(object).toQueryString();
  },

  toHTML: function(object) {
    return object && object.toHTML ? object.toHTML() : String.interpret(object);
  },

  keys: function(object) {
    var keys = [];
    for (var property in object)
      keys.push(property);
    return keys;
  },

  values: function(object) {
    var values = [];
    for (var property in object)
      values.push(object[property]);
    return values;
  },

  clone: function(object) {
    return Object.extend({ }, object);
  },

  isElement: function(object) {
    return !!(object && object.nodeType == 1);
  },

  isArray: function(object) {
    return object != null && typeof object == "object" &&
      'splice' in object && 'join' in object;
  },

  isHash: function(object) {
    return object instanceof Hash;
  },

  isFunction: function(object) {
    return typeof object == "function";
  },

  isString: function(object) {
    return typeof object == "string";
  },

  isNumber: function(object) {
    return typeof object == "number";
  },

  isUndefined: function(object) {
    return typeof object == "undefined";
  }
});

Object.extend(Function.prototype, {
  argumentNames: function() {
    var names = this.toString().match(/^[\s\(]*function[^(]*\(([^\)]*)\)/)[1]
      .replace(/\s+/g, '').split(',');
    return names.length == 1 && !names[0] ? [] : names;
  },

  bind: function() {
    if (arguments.length < 2 && Object.isUndefined(arguments[0])) return this;
    var __method = this, args = $A(arguments), object = args.shift();
    return function() {
      return __method.apply(object, args.concat($A(arguments)));
    }
  },

  bindAsEventListener: function() {
    var __method = this, args = $A(arguments), object = args.shift();
    return function(event) {
      return __method.apply(object, [event || window.event].concat(args));
    }
  },

  curry: function() {
    if (!arguments.length) return this;
    var __method = this, args = $A(arguments);
    return function() {
      return __method.apply(this, args.concat($A(arguments)));
    }
  },

  delay: function() {
    var __method = this, args = $A(arguments), timeout = args.shift() * 1000;
    return window.setTimeout(function() {
      return __method.apply(__method, args);
    }, timeout);
  },

  defer: function() {
    var args = [0.01].concat($A(arguments));
    return this.delay.apply(this, args);
  },

  wrap: function(wrapper) {
    var __method = this;
    return function() {
      return wrapper.apply(this, [__method.bind(this)].concat($A(arguments)));
    }
  },

  methodize: function() {
    if (this._methodized) return this._methodized;
    var __method = this;
    return this._methodized = function() {
      return __method.apply(null, [this].concat($A(arguments)));
    };
  }
});

Date.prototype.toJSON = function() {
  return '"' + this.getUTCFullYear() + '-' +
    (this.getUTCMonth() + 1).toPaddedString(2) + '-' +
    this.getUTCDate().toPaddedString(2) + 'T' +
    this.getUTCHours().toPaddedString(2) + ':' +
    this.getUTCMinutes().toPaddedString(2) + ':' +
    this.getUTCSeconds().toPaddedString(2) + 'Z"';
};

var Try = {
  these: function() {
    var returnValue;

    for (var i = 0, length = arguments.length; i < length; i++) {
      var lambda = arguments[i];
      try {
        returnValue = lambda();
        break;
      } catch (e) { }
    }

    return returnValue;
  }
};

RegExp.prototype.match = RegExp.prototype.test;

RegExp.escape = function(str) {
  return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
};

/*--------------------------------------------------------------------------*/

var PeriodicalExecuter = Class.create({
  initialize: function(callback, frequency) {
    this.callback = callback;
    this.frequency = frequency;
    this.currentlyExecuting = false;

    this.registerCallback();
  },

  registerCallback: function() {
    this.timer = setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
  },

  execute: function() {
    this.callback(this);
  },

  stop: function() {
    if (!this.timer) return;
    clearInterval(this.timer);
    this.timer = null;
  },

  onTimerEvent: function() {
    if (!this.currentlyExecuting) {
      try {
        this.currentlyExecuting = true;
        this.execute();
      } finally {
        this.currentlyExecuting = false;
      }
    }
  }
});
Object.extend(String, {
  interpret: function(value) {
    return value == null ? '' : String(value);
  },
  specialChar: {
    '\b': '\\b',
    '\t': '\\t',
    '\n': '\\n',
    '\f': '\\f',
    '\r': '\\r',
    '\\': '\\\\'
  }
});

Object.extend(String.prototype, {
  gsub: function(pattern, replacement) {
    var result = '', source = this, match;
    replacement = arguments.callee.prepareReplacement(replacement);

    while (source.length > 0) {
      if (match = source.match(pattern)) {
        result += source.slice(0, match.index);
        result += String.interpret(replacement(match));
        source  = source.slice(match.index + match[0].length);
      } else {
        result += source, source = '';
      }
    }
    return result;
  },

  sub: function(pattern, replacement, count) {
    replacement = this.gsub.prepareReplacement(replacement);
    count = Object.isUndefined(count) ? 1 : count;

    return this.gsub(pattern, function(match) {
      if (--count < 0) return match[0];
      return replacement(match);
    });
  },

  scan: function(pattern, iterator) {
    this.gsub(pattern, iterator);
    return String(this);
  },

  truncate: function(length, truncation) {
    length = length || 30;
    truncation = Object.isUndefined(truncation) ? '...' : truncation;
    return this.length > length ?
      this.slice(0, length - truncation.length) + truncation : String(this);
  },

  strip: function() {
    return this.replace(/^\s+/, '').replace(/\s+$/, '');
  },

  stripTags: function() {
    return this.replace(/<\/?[^>]+>/gi, '');
  },

  stripScripts: function() {
    return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
  },

  extractScripts: function() {
    var matchAll = new RegExp(Prototype.ScriptFragment, 'img');
    var matchOne = new RegExp(Prototype.ScriptFragment, 'im');
    return (this.match(matchAll) || []).map(function(scriptTag) {
      return (scriptTag.match(matchOne) || ['', ''])[1];
    });
  },

  evalScripts: function() {
    return this.extractScripts().map(function(script) { return eval(script) });
  },

  escapeHTML: function() {
    var self = arguments.callee;
    self.text.data = this;
    return self.div.innerHTML;
  },

  unescapeHTML: function() {
    var div = new Element('div');
    div.innerHTML = this.stripTags();
    return div.childNodes[0] ? (div.childNodes.length > 1 ?
      $A(div.childNodes).inject('', function(memo, node) { return memo+node.nodeValue }) :
      div.childNodes[0].nodeValue) : '';
  },

  toQueryParams: function(separator) {
    var match = this.strip().match(/([^?#]*)(#.*)?$/);
    if (!match) return { };

    return match[1].split(separator || '&').inject({ }, function(hash, pair) {
      if ((pair = pair.split('='))[0]) {
        var key = decodeURIComponent(pair.shift());
        var value = pair.length > 1 ? pair.join('=') : pair[0];
        if (value != undefined) value = decodeURIComponent(value);

        if (key in hash) {
          if (!Object.isArray(hash[key])) hash[key] = [hash[key]];
          hash[key].push(value);
        }
        else hash[key] = value;
      }
      return hash;
    });
  },

  toArray: function() {
    return this.split('');
  },

  succ: function() {
    return this.slice(0, this.length - 1) +
      String.fromCharCode(this.charCodeAt(this.length - 1) + 1);
  },

  times: function(count) {
    return count < 1 ? '' : new Array(count + 1).join(this);
  },

  camelize: function() {
    var parts = this.split('-'), len = parts.length;
    if (len == 1) return parts[0];

    var camelized = this.charAt(0) == '-'
      ? parts[0].charAt(0).toUpperCase() + parts[0].substring(1)
      : parts[0];

    for (var i = 1; i < len; i++)
      camelized += parts[i].charAt(0).toUpperCase() + parts[i].substring(1);

    return camelized;
  },

  capitalize: function() {
    return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase();
  },

  underscore: function() {
    return this.gsub(/::/, '/').gsub(/([A-Z]+)([A-Z][a-z])/,'#{1}_#{2}').gsub(/([a-z\d])([A-Z])/,'#{1}_#{2}').gsub(/-/,'_').toLowerCase();
  },

  dasherize: function() {
    return this.gsub(/_/,'-');
  },

  inspect: function(useDoubleQuotes) {
    var escapedString = this.gsub(/[\x00-\x1f\\]/, function(match) {
      var character = String.specialChar[match[0]];
      return character ? character : '\\u00' + match[0].charCodeAt().toPaddedString(2, 16);
    });
    if (useDoubleQuotes) return '"' + escapedString.replace(/"/g, '\\"') + '"';
    return "'" + escapedString.replace(/'/g, '\\\'') + "'";
  },

  toJSON: function() {
    return this.inspect(true);
  },

  unfilterJSON: function(filter) {
    return this.sub(filter || Prototype.JSONFilter, '#{1}');
  },

  isJSON: function() {
    var str = this;
    if (str.blank()) return false;
    str = this.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, '');
    return (/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str);
  },

  evalJSON: function(sanitize) {
    var json = this.unfilterJSON();
    try {
      if (!sanitize || json.isJSON()) return eval('(' + json + ')');
    } catch (e) { }
    throw new SyntaxError('Badly formed JSON string: ' + this.inspect());
  },

  include: function(pattern) {
    return this.indexOf(pattern) > -1;
  },

  startsWith: function(pattern) {
    return this.indexOf(pattern) === 0;
  },

  endsWith: function(pattern) {
    var d = this.length - pattern.length;
    return d >= 0 && this.lastIndexOf(pattern) === d;
  },

  empty: function() {
    return this == '';
  },

  blank: function() {
    return /^\s*$/.test(this);
  },

  interpolate: function(object, pattern) {
    return new Template(this, pattern).evaluate(object);
  }
});

if (Prototype.Browser.WebKit || Prototype.Browser.IE) Object.extend(String.prototype, {
  escapeHTML: function() {
    return this.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
  },
  unescapeHTML: function() {
    return this.stripTags().replace(/&amp;/g,'&').replace(/&lt;/g,'<').replace(/&gt;/g,'>');
  }
});

String.prototype.gsub.prepareReplacement = function(replacement) {
  if (Object.isFunction(replacement)) return replacement;
  var template = new Template(replacement);
  return function(match) { return template.evaluate(match) };
};

String.prototype.parseQuery = String.prototype.toQueryParams;

Object.extend(String.prototype.escapeHTML, {
  div:  document.createElement('div'),
  text: document.createTextNode('')
});

String.prototype.escapeHTML.div.appendChild(String.prototype.escapeHTML.text);

var Template = Class.create({
  initialize: function(template, pattern) {
    this.template = template.toString();
    this.pattern = pattern || Template.Pattern;
  },

  evaluate: function(object) {
    if (Object.isFunction(object.toTemplateReplacements))
      object = object.toTemplateReplacements();

    return this.template.gsub(this.pattern, function(match) {
      if (object == null) return '';

      var before = match[1] || '';
      if (before == '\\') return match[2];

      var ctx = object, expr = match[3];
      var pattern = /^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/;
      match = pattern.exec(expr);
      if (match == null) return before;

      while (match != null) {
        var comp = match[1].startsWith('[') ? match[2].gsub('\\\\]', ']') : match[1];
        ctx = ctx[comp];
        if (null == ctx || '' == match[3]) break;
        expr = expr.substring('[' == match[3] ? match[1].length : match[0].length);
        match = pattern.exec(expr);
      }

      return before + String.interpret(ctx);
    });
  }
});
Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;

var $break = { };

var Enumerable = {
  each: function(iterator, context) {
    var index = 0;
    try {
      this._each(function(value) {
        iterator.call(context, value, index++);
      });
    } catch (e) {
      if (e != $break) throw e;
    }
    return this;
  },

  eachSlice: function(number, iterator, context) {
    var index = -number, slices = [], array = this.toArray();
    if (number < 1) return array;
    while ((index += number) < array.length)
      slices.push(array.slice(index, index+number));
    return slices.collect(iterator, context);
  },

  all: function(iterator, context) {
    iterator = iterator || Prototype.K;
    var result = true;
    this.each(function(value, index) {
      result = result && !!iterator.call(context, value, index);
      if (!result) throw $break;
    });
    return result;
  },

  any: function(iterator, context) {
    iterator = iterator || Prototype.K;
    var result = false;
    this.each(function(value, index) {
      if (result = !!iterator.call(context, value, index))
        throw $break;
    });
    return result;
  },

  collect: function(iterator, context) {
    iterator = iterator || Prototype.K;
    var results = [];
    this.each(function(value, index) {
      results.push(iterator.call(context, value, index));
    });
    return results;
  },

  detect: function(iterator, context) {
    var result;
    this.each(function(value, index) {
      if (iterator.call(context, value, index)) {
        result = value;
        throw $break;
      }
    });
    return result;
  },

  findAll: function(iterator, context) {
    var results = [];
    this.each(function(value, index) {
      if (iterator.call(context, value, index))
        results.push(value);
    });
    return results;
  },

  grep: function(filter, iterator, context) {
    iterator = iterator || Prototype.K;
    var results = [];

    if (Object.isString(filter))
      filter = new RegExp(filter);

    this.each(function(value, index) {
      if (filter.match(value))
        results.push(iterator.call(context, value, index));
    });
    return results;
  },

  include: function(object) {
    if (Object.isFunction(this.indexOf))
      if (this.indexOf(object) != -1) return true;

    var found = false;
    this.each(function(value) {
      if (value == object) {
        found = true;
        throw $break;
      }
    });
    return found;
  },

  inGroupsOf: function(number, fillWith) {
    fillWith = Object.isUndefined(fillWith) ? null : fillWith;
    return this.eachSlice(number, function(slice) {
      while(slice.length < number) slice.push(fillWith);
      return slice;
    });
  },

  inject: function(memo, iterator, context) {
    this.each(function(value, index) {
      memo = iterator.call(context, memo, value, index);
    });
    return memo;
  },

  invoke: function(method) {
    var args = $A(arguments).slice(1);
    return this.map(function(value) {
      return value[method].apply(value, args);
    });
  },

  max: function(iterator, context) {
    iterator = iterator || Prototype.K;
    var result;
    this.each(function(value, index) {
      value = iterator.call(context, value, index);
      if (result == null || value >= result)
        result = value;
    });
    return result;
  },

  min: function(iterator, context) {
    iterator = iterator || Prototype.K;
    var result;
    this.each(function(value, index) {
      value = iterator.call(context, value, index);
      if (result == null || value < result)
        result = value;
    });
    return result;
  },

  partition: function(iterator, context) {
    iterator = iterator || Prototype.K;
    var trues = [], falses = [];
    this.each(function(value, index) {
      (iterator.call(context, value, index) ?
        trues : falses).push(value);
    });
    return [trues, falses];
  },

  pluck: function(property) {
    var results = [];
    this.each(function(value) {
      results.push(value[property]);
    });
    return results;
  },

  reject: function(iterator, context) {
    var results = [];
    this.each(function(value, index) {
      if (!iterator.call(context, value, index))
        results.push(value);
    });
    return results;
  },

  sortBy: function(iterator, context) {
    return this.map(function(value, index) {
      return {
        value: value,
        criteria: iterator.call(context, value, index)
      };
    }).sort(function(left, right) {
      var a = left.criteria, b = right.criteria;
      return a < b ? -1 : a > b ? 1 : 0;
    }).pluck('value');
  },

  toArray: function() {
    return this.map();
  },

  zip: function() {
    var iterator = Prototype.K, args = $A(arguments);
    if (Object.isFunction(args.last()))
      iterator = args.pop();

    var collections = [this].concat(args).map($A);
    return this.map(function(value, index) {
      return iterator(collections.pluck(index));
    });
  },

  size: function() {
    return this.toArray().length;
  },

  inspect: function() {
    return '#<Enumerable:' + this.toArray().inspect() + '>';
  }
};

Object.extend(Enumerable, {
  map:     Enumerable.collect,
  find:    Enumerable.detect,
  select:  Enumerable.findAll,
  filter:  Enumerable.findAll,
  member:  Enumerable.include,
  entries: Enumerable.toArray,
  every:   Enumerable.all,
  some:    Enumerable.any
});
function $A(iterable) {
  if (!iterable) return [];
  if (iterable.toArray) return iterable.toArray();
  var length = iterable.length || 0, results = new Array(length);
  while (length--) results[length] = iterable[length];
  return results;
}

if (Prototype.Browser.WebKit) {
  $A = function(iterable) {
    if (!iterable) return [];
    // In Safari, only use the `toArray` method if it's not a NodeList.
    // A NodeList is a function, has an function `item` property, and a numeric
    // `length` property. Adapted from Google Doctype.
    if (!(typeof iterable === 'function' && typeof iterable.length ===
        'number' && typeof iterable.item === 'function') && iterable.toArray)
      return iterable.toArray();
    var length = iterable.length || 0, results = new Array(length);
    while (length--) results[length] = iterable[length];
    return results;
  };
}

Array.from = $A;

Object.extend(Array.prototype, Enumerable);

if (!Array.prototype._reverse) Array.prototype._reverse = Array.prototype.reverse;

Object.extend(Array.prototype, {
  _each: function(iterator) {
    for (var i = 0, length = this.length; i < length; i++)
      iterator(this[i]);
  },

  clear: function() {
    this.length = 0;
    return this;
  },

  first: function() {
    return this[0];
  },

  last: function() {
    return this[this.length - 1];
  },

  compact: function() {
    return this.select(function(value) {
      return value != null;
    });
  },

  flatten: function() {
    return this.inject([], function(array, value) {
      return array.concat(Object.isArray(value) ?
        value.flatten() : [value]);
    });
  },

  without: function() {
    var values = $A(arguments);
    return this.select(function(value) {
      return !values.include(value);
    });
  },

  reverse: function(inline) {
    return (inline !== false ? this : this.toArray())._reverse();
  },

  reduce: function() {
    return this.length > 1 ? this : this[0];
  },

  uniq: function(sorted) {
    return this.inject([], function(array, value, index) {
      if (0 == index || (sorted ? array.last() != value : !array.include(value)))
        array.push(value);
      return array;
    });
  },

  intersect: function(array) {
    return this.uniq().findAll(function(item) {
      return array.detect(function(value) { return item === value });
    });
  },

  clone: function() {
    return [].concat(this);
  },

  size: function() {
    return this.length;
  },

  inspect: function() {
    return '[' + this.map(Object.inspect).join(', ') + ']';
  },

  toJSON: function() {
    var results = [];
    this.each(function(object) {
      var value = Object.toJSON(object);
      if (!Object.isUndefined(value)) results.push(value);
    });
    return '[' + results.join(', ') + ']';
  }
});

// use native browser JS 1.6 implementation if available
if (Object.isFunction(Array.prototype.forEach))
  Array.prototype._each = Array.prototype.forEach;

if (!Array.prototype.indexOf) Array.prototype.indexOf = function(item, i) {
  i || (i = 0);
  var length = this.length;
  if (i < 0) i = length + i;
  for (; i < length; i++)
    if (this[i] === item) return i;
  return -1;
};

if (!Array.prototype.lastIndexOf) Array.prototype.lastIndexOf = function(item, i) {
  i = isNaN(i) ? this.length : (i < 0 ? this.length + i : i) + 1;
  var n = this.slice(0, i).reverse().indexOf(item);
  return (n < 0) ? n : i - n - 1;
};

Array.prototype.toArray = Array.prototype.clone;

function $w(string) {
  if (!Object.isString(string)) return [];
  string = string.strip();
  return string ? string.split(/\s+/) : [];
}

if (Prototype.Browser.Opera){
  Array.prototype.concat = function() {
    var array = [];
    for (var i = 0, length = this.length; i < length; i++) array.push(this[i]);
    for (var i = 0, length = arguments.length; i < length; i++) {
      if (Object.isArray(arguments[i])) {
        for (var j = 0, arrayLength = arguments[i].length; j < arrayLength; j++)
          array.push(arguments[i][j]);
      } else {
        array.push(arguments[i]);
      }
    }
    return array;
  };
}
Object.extend(Number.prototype, {
  toColorPart: function() {
    return this.toPaddedString(2, 16);
  },

  succ: function() {
    return this + 1;
  },

  times: function(iterator, context) {
    $R(0, this, true).each(iterator, context);
    return this;
  },

  toPaddedString: function(length, radix) {
    var string = this.toString(radix || 10);
    return '0'.times(length - string.length) + string;
  },

  toJSON: function() {
    return isFinite(this) ? this.toString() : 'null';
  }
});

$w('abs round ceil floor').each(function(method){
  Number.prototype[method] = Math[method].methodize();
});
function $H(object) {
  return new Hash(object);
};

var Hash = Class.create(Enumerable, (function() {

  function toQueryPair(key, value) {
    if (Object.isUndefined(value)) return key;
    return key + '=' + encodeURIComponent(String.interpret(value));
  }

  return {
    initialize: function(object) {
      this._object = Object.isHash(object) ? object.toObject() : Object.clone(object);
    },

    _each: function(iterator) {
      for (var key in this._object) {
        var value = this._object[key], pair = [key, value];
        pair.key = key;
        pair.value = value;
        iterator(pair);
      }
    },

    set: function(key, value) {
      return this._object[key] = value;
    },

    get: function(key) {
      // simulating poorly supported hasOwnProperty
      if (this._object[key] !== Object.prototype[key])
        return this._object[key];
    },

    unset: function(key) {
      var value = this._object[key];
      delete this._object[key];
      return value;
    },

    toObject: function() {
      return Object.clone(this._object);
    },

    keys: function() {
      return this.pluck('key');
    },

    values: function() {
      return this.pluck('value');
    },

    index: function(value) {
      var match = this.detect(function(pair) {
        return pair.value === value;
      });
      return match && match.key;
    },

    merge: function(object) {
      return this.clone().update(object);
    },

    update: function(object) {
      return new Hash(object).inject(this, function(result, pair) {
        result.set(pair.key, pair.value);
        return result;
      });
    },

    toQueryString: function() {
      return this.inject([], function(results, pair) {
        var key = encodeURIComponent(pair.key), values = pair.value;

        if (values && typeof values == 'object') {
          if (Object.isArray(values))
            return results.concat(values.map(toQueryPair.curry(key)));
        } else results.push(toQueryPair(key, values));
        return results;
      }).join('&');
    },

    inspect: function() {
      return '#<Hash:{' + this.map(function(pair) {
        return pair.map(Object.inspect).join(': ');
      }).join(', ') + '}>';
    },

    toJSON: function() {
      return Object.toJSON(this.toObject());
    },

    clone: function() {
      return new Hash(this);
    }
  }
})());

Hash.prototype.toTemplateReplacements = Hash.prototype.toObject;
Hash.from = $H;
var ObjectRange = Class.create(Enumerable, {
  initialize: function(start, end, exclusive) {
    this.start = start;
    this.end = end;
    this.exclusive = exclusive;
  },

  _each: function(iterator) {
    var value = this.start;
    while (this.include(value)) {
      iterator(value);
      value = value.succ();
    }
  },

  include: function(value) {
    if (value < this.start)
      return false;
    if (this.exclusive)
      return value < this.end;
    return value <= this.end;
  }
});

var $R = function(start, end, exclusive) {
  return new ObjectRange(start, end, exclusive);
};

var Ajax = {
  getTransport: function() {
    return Try.these(
      function() {return new XMLHttpRequest()},
      function() {return new ActiveXObject('Msxml2.XMLHTTP')},
      function() {return new ActiveXObject('Microsoft.XMLHTTP')}
    ) || false;
  },

  activeRequestCount: 0
};

Ajax.Responders = {
  responders: [],

  _each: function(iterator) {
    this.responders._each(iterator);
  },

  register: function(responder) {
    if (!this.include(responder))
      this.responders.push(responder);
  },

  unregister: function(responder) {
    this.responders = this.responders.without(responder);
  },

  dispatch: function(callback, request, transport, json) {
    this.each(function(responder) {
      if (Object.isFunction(responder[callback])) {
        try {
          responder[callback].apply(responder, [request, transport, json]);
        } catch (e) { }
      }
    });
  }
};

Object.extend(Ajax.Responders, Enumerable);

Ajax.Responders.register({
  onCreate:   function() { Ajax.activeRequestCount++ },
  onComplete: function() { Ajax.activeRequestCount-- }
});

Ajax.Base = Class.create({
  initialize: function(options) {
    this.options = {
      method:       'post',
      asynchronous: true,
      contentType:  'application/x-www-form-urlencoded',
      encoding:     'UTF-8',
      parameters:   '',
      evalJSON:     true,
      evalJS:       true
    };
    Object.extend(this.options, options || { });

    this.options.method = this.options.method.toLowerCase();

    if (Object.isString(this.options.parameters))
      this.options.parameters = this.options.parameters.toQueryParams();
    else if (Object.isHash(this.options.parameters))
      this.options.parameters = this.options.parameters.toObject();
  }
});

Ajax.Request = Class.create(Ajax.Base, {
  _complete: false,

  initialize: function($super, url, options) {
    $super(options);
    this.transport = Ajax.getTransport();
    this.request(url);
  },

  request: function(url) {
    this.url = url;
    this.method = this.options.method;
    var params = Object.clone(this.options.parameters);

    if (!['get', 'post'].include(this.method)) {
      // simulate other verbs over post
      params['_method'] = this.method;
      this.method = 'post';
    }

    this.parameters = params;

    if (params = Object.toQueryString(params)) {
      // when GET, append parameters to URL
      if (this.method == 'get')
        this.url += (this.url.include('?') ? '&' : '?') + params;
      else if (/Konqueror|Safari|KHTML/.test(navigator.userAgent))
        params += '&_=';
    }

    try {
      var response = new Ajax.Response(this);
      if (this.options.onCreate) this.options.onCreate(response);
      Ajax.Responders.dispatch('onCreate', this, response);

      this.transport.open(this.method.toUpperCase(), this.url,
        this.options.asynchronous);

      if (this.options.asynchronous) this.respondToReadyState.bind(this).defer(1);

      this.transport.onreadystatechange = this.onStateChange.bind(this);
      this.setRequestHeaders();

      this.body = this.method == 'post' ? (this.options.postBody || params) : null;
      this.transport.send(this.body);

      /* Force Firefox to handle ready state 4 for synchronous requests */
      if (!this.options.asynchronous && this.transport.overrideMimeType)
        this.onStateChange();

    }
    catch (e) {
      this.dispatchException(e);
    }
  },

  onStateChange: function() {
    var readyState = this.transport.readyState;
    if (readyState > 1 && !((readyState == 4) && this._complete))
      this.respondToReadyState(this.transport.readyState);
  },

  setRequestHeaders: function() {
    var headers = {
      'X-Requested-With': 'XMLHttpRequest',
      'X-Prototype-Version': Prototype.Version,
      'Accept': 'text/javascript, text/html, application/xml, text/xml, */*'
    };

    if (this.method == 'post') {
      headers['Content-type'] = this.options.contentType +
        (this.options.encoding ? '; charset=' + this.options.encoding : '');

      /* Force "Connection: close" for older Mozilla browsers to work
       * around a bug where XMLHttpRequest sends an incorrect
       * Content-length header. See Mozilla Bugzilla #246651.
       */
      if (this.transport.overrideMimeType &&
          (navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005)
            headers['Connection'] = 'close';
    }

    // user-defined headers
    if (typeof this.options.requestHeaders == 'object') {
      var extras = this.options.requestHeaders;

      if (Object.isFunction(extras.push))
        for (var i = 0, length = extras.length; i < length; i += 2)
          headers[extras[i]] = extras[i+1];
      else
        $H(extras).each(function(pair) { headers[pair.key] = pair.value });
    }

    for (var name in headers)
      this.transport.setRequestHeader(name, headers[name]);
  },

  success: function() {
    var status = this.getStatus();
    return !status || (status >= 200 && status < 300);
  },

  getStatus: function() {
    try {
      return this.transport.status || 0;
    } catch (e) { return 0 }
  },

  respondToReadyState: function(readyState) {
    var state = Ajax.Request.Events[readyState], response = new Ajax.Response(this);

    if (state == 'Complete') {
      try {
        this._complete = true;
        (this.options['on' + response.status]
         || this.options['on' + (this.success() ? 'Success' : 'Failure')]
         || Prototype.emptyFunction)(response, response.headerJSON);
      } catch (e) {
        this.dispatchException(e);
      }

      var contentType = response.getHeader('Content-type');
      if (this.options.evalJS == 'force'
          || (this.options.evalJS && this.isSameOrigin() && contentType
          && contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/i)))
        this.evalResponse();
    }

    try {
      (this.options['on' + state] || Prototype.emptyFunction)(response, response.headerJSON);
      Ajax.Responders.dispatch('on' + state, this, response, response.headerJSON);
    } catch (e) {
      this.dispatchException(e);
    }

    if (state == 'Complete') {
      // avoid memory leak in MSIE: clean up
      this.transport.onreadystatechange = Prototype.emptyFunction;
    }
  },

  isSameOrigin: function() {
    var m = this.url.match(/^\s*https?:\/\/[^\/]*/);
    return !m || (m[0] == '#{protocol}//#{domain}#{port}'.interpolate({
      protocol: location.protocol,
      domain: document.domain,
      port: location.port ? ':' + location.port : ''
    }));
  },

  getHeader: function(name) {
    try {
      return this.transport.getResponseHeader(name) || null;
    } catch (e) { return null }
  },

  evalResponse: function() {
    try {
      return eval((this.transport.responseText || '').unfilterJSON());
    } catch (e) {
      this.dispatchException(e);
    }
  },

  dispatchException: function(exception) {
    (this.options.onException || Prototype.emptyFunction)(this, exception);
    Ajax.Responders.dispatch('onException', this, exception);
  }
});

Ajax.Request.Events =
  ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];

Ajax.Response = Class.create({
  initialize: function(request){
    this.request = request;
    var transport  = this.transport  = request.transport,
        readyState = this.readyState = transport.readyState;

    if((readyState > 2 && !Prototype.Browser.IE) || readyState == 4) {
      this.status       = this.getStatus();
      this.statusText   = this.getStatusText();
      this.responseText = String.interpret(transport.responseText);
      this.headerJSON   = this._getHeaderJSON();
    }

    if(readyState == 4) {
      var xml = transport.responseXML;
      this.responseXML  = Object.isUndefined(xml) ? null : xml;
      this.responseJSON = this._getResponseJSON();
    }
  },

  status:      0,
  statusText: '',

  getStatus: Ajax.Request.prototype.getStatus,

  getStatusText: function() {
    try {
      return this.transport.statusText || '';
    } catch (e) { return '' }
  },

  getHeader: Ajax.Request.prototype.getHeader,

  getAllHeaders: function() {
    try {
      return this.getAllResponseHeaders();
    } catch (e) { return null }
  },

  getResponseHeader: function(name) {
    return this.transport.getResponseHeader(name);
  },

  getAllResponseHeaders: function() {
    return this.transport.getAllResponseHeaders();
  },

  _getHeaderJSON: function() {
    var json = this.getHeader('X-JSON');
    if (!json) return null;
    json = decodeURIComponent(escape(json));
    try {
      return json.evalJSON(this.request.options.sanitizeJSON ||
        !this.request.isSameOrigin());
    } catch (e) {
      this.request.dispatchException(e);
    }
  },

  _getResponseJSON: function() {
    var options = this.request.options;
    if (!options.evalJSON || (options.evalJSON != 'force' &&
      !(this.getHeader('Content-type') || '').include('application/json')) ||
        this.responseText.blank())
          return null;
    try {
      return this.responseText.evalJSON(options.sanitizeJSON ||
        !this.request.isSameOrigin());
    } catch (e) {
      this.request.dispatchException(e);
    }
  }
});

Ajax.Updater = Class.create(Ajax.Request, {
  initialize: function($super, container, url, options) {
    this.container = {
      success: (container.success || container),
      failure: (container.failure || (container.success ? null : container))
    };

    options = Object.clone(options);
    var onComplete = options.onComplete;
    options.onComplete = (function(response, json) {
      this.updateContent(response.responseText);
      if (Object.isFunction(onComplete)) onComplete(response, json);
    }).bind(this);

    $super(url, options);
  },

  updateContent: function(responseText) {
    var receiver = this.container[this.success() ? 'success' : 'failure'],
        options = this.options;

    if (!options.evalScripts) responseText = responseText.stripScripts();

    if (receiver = $(receiver)) {
      if (options.insertion) {
        if (Object.isString(options.insertion)) {
          var insertion = { }; insertion[options.insertion] = responseText;
          receiver.insert(insertion);
        }
        else options.insertion(receiver, responseText);
      }
      else receiver.update(responseText);
    }
  }
});

Ajax.PeriodicalUpdater = Class.create(Ajax.Base, {
  initialize: function($super, container, url, options) {
    $super(options);
    this.onComplete = this.options.onComplete;

    this.frequency = (this.options.frequency || 2);
    this.decay = (this.options.decay || 1);

    this.updater = { };
    this.container = container;
    this.url = url;

    this.start();
  },

  start: function() {
    this.options.onComplete = this.updateComplete.bind(this);
    this.onTimerEvent();
  },

  stop: function() {
    this.updater.options.onComplete = undefined;
    clearTimeout(this.timer);
    (this.onComplete || Prototype.emptyFunction).apply(this, arguments);
  },

  updateComplete: function(response) {
    if (this.options.decay) {
      this.decay = (response.responseText == this.lastText ?
        this.decay * this.options.decay : 1);

      this.lastText = response.responseText;
    }
    this.timer = this.onTimerEvent.bind(this).delay(this.decay * this.frequency);
  },

  onTimerEvent: function() {
    this.updater = new Ajax.Updater(this.container, this.url, this.options);
  }
});
function $(element) {
  if (arguments.length > 1) {
    for (var i = 0, elements = [], length = arguments.length; i < length; i++)
      elements.push($(arguments[i]));
    return elements;
  }
  if (Object.isString(element))
    element = document.getElementById(element);
  return Element.extend(element);
}

if (Prototype.BrowserFeatures.XPath) {
  document._getElementsByXPath = function(expression, parentElement) {
    var results = [];
    var query = document.evaluate(expression, $(parentElement) || document,
      null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
    for (var i = 0, length = query.snapshotLength; i < length; i++)
      results.push(Element.extend(query.snapshotItem(i)));
    return results;
  };
}

/*--------------------------------------------------------------------------*/

if (!window.Node) var Node = { };

if (!Node.ELEMENT_NODE) {
  // DOM level 2 ECMAScript Language Binding
  Object.extend(Node, {
    ELEMENT_NODE: 1,
    ATTRIBUTE_NODE: 2,
    TEXT_NODE: 3,
    CDATA_SECTION_NODE: 4,
    ENTITY_REFERENCE_NODE: 5,
    ENTITY_NODE: 6,
    PROCESSING_INSTRUCTION_NODE: 7,
    COMMENT_NODE: 8,
    DOCUMENT_NODE: 9,
    DOCUMENT_TYPE_NODE: 10,
    DOCUMENT_FRAGMENT_NODE: 11,
    NOTATION_NODE: 12
  });
}

(function() {
  var element = this.Element;
  this.Element = function(tagName, attributes) {
    attributes = attributes || { };
    tagName = tagName.toLowerCase();
    var cache = Element.cache;
    if (Prototype.Browser.IE && attributes.name) {
      tagName = '<' + tagName + ' name="' + attributes.name + '">';
      delete attributes.name;
      return Element.writeAttribute(document.createElement(tagName), attributes);
    }
    if (!cache[tagName]) cache[tagName] = Element.extend(document.createElement(tagName));
    return Element.writeAttribute(cache[tagName].cloneNode(false), attributes);
  };
  Object.extend(this.Element, element || { });
  if (element) this.Element.prototype = element.prototype;
}).call(window);

Element.cache = { };

Element.Methods = {
  visible: function(element) {
    return $(element).style.display != 'none';
  },

  toggle: function(element) {
    element = $(element);
    Element[Element.visible(element) ? 'hide' : 'show'](element);
    return element;
  },

  hide: function(element) {
    element = $(element);
    element.style.display = 'none';
    return element;
  },

  show: function(element) {
    element = $(element);
    element.style.display = '';
    return element;
  },

  remove: function(element) {
    element = $(element);
    element.parentNode.removeChild(element);
    return element;
  },

  update: function(element, content) {
    element = $(element);
    if (content && content.toElement) content = content.toElement();
    if (Object.isElement(content)) return element.update().insert(content);
    content = Object.toHTML(content);
    element.innerHTML = content.stripScripts();
    content.evalScripts.bind(content).defer();
    return element;
  },

  replace: function(element, content) {
    element = $(element);
    if (content && content.toElement) content = content.toElement();
    else if (!Object.isElement(content)) {
      content = Object.toHTML(content);
      var range = element.ownerDocument.createRange();
      range.selectNode(element);
      content.evalScripts.bind(content).defer();
      content = range.createContextualFragment(content.stripScripts());
    }
    element.parentNode.replaceChild(content, element);
    return element;
  },

  insert: function(element, insertions) {
    element = $(element);

    if (Object.isString(insertions) || Object.isNumber(insertions) ||
        Object.isElement(insertions) || (insertions && (insertions.toElement || insertions.toHTML)))
          insertions = {bottom:insertions};

    var content, insert, tagName, childNodes;

    for (var position in insertions) {
      content  = insertions[position];
      position = position.toLowerCase();
      insert = Element._insertionTranslations[position];

      if (content && content.toElement) content = content.toElement();
      if (Object.isElement(content)) {
        insert(element, content);
        continue;
      }

      content = Object.toHTML(content);

      tagName = ((position == 'before' || position == 'after')
        ? element.parentNode : element).tagName.toUpperCase();

      childNodes = Element._getContentFromAnonymousElement(tagName, content.stripScripts());

      if (position == 'top' || position == 'after') childNodes.reverse();
      childNodes.each(insert.curry(element));

      content.evalScripts.bind(content).defer();
    }

    return element;
  },

  wrap: function(element, wrapper, attributes) {
    element = $(element);
    if (Object.isElement(wrapper))
      $(wrapper).writeAttribute(attributes || { });
    else if (Object.isString(wrapper)) wrapper = new Element(wrapper, attributes);
    else wrapper = new Element('div', wrapper);
    if (element.parentNode)
      element.parentNode.replaceChild(wrapper, element);
    wrapper.appendChild(element);
    return wrapper;
  },

  inspect: function(element) {
    element = $(element);
    var result = '<' + element.tagName.toLowerCase();
    $H({'id': 'id', 'className': 'class'}).each(function(pair) {
      var property = pair.first(), attribute = pair.last();
      var value = (element[property] || '').toString();
      if (value) result += ' ' + attribute + '=' + value.inspect(true);
    });
    return result + '>';
  },

  recursivelyCollect: function(element, property) {
    element = $(element);
    var elements = [];
    while (element = element[property])
      if (element.nodeType == 1)
        elements.push(Element.extend(element));
    return elements;
  },

  ancestors: function(element) {
    return $(element).recursivelyCollect('parentNode');
  },

  descendants: function(element) {
    return $(element).select("*");
  },

  firstDescendant: function(element) {
    element = $(element).firstChild;
    while (element && element.nodeType != 1) element = element.nextSibling;
    return $(element);
  },

  immediateDescendants: function(element) {
    if (!(element = $(element).firstChild)) return [];
    while (element && element.nodeType != 1) element = element.nextSibling;
    if (element) return [element].concat($(element).nextSiblings());
    return [];
  },

  previousSiblings: function(element) {
    return $(element).recursivelyCollect('previousSibling');
  },

  nextSiblings: function(element) {
    return $(element).recursivelyCollect('nextSibling');
  },

  siblings: function(element) {
    element = $(element);
    return element.previousSiblings().reverse().concat(element.nextSiblings());
  },

  match: function(element, selector) {
    if (Object.isString(selector))
      selector = new Selector(selector);
    return selector.match($(element));
  },

  up: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(element.parentNode);
    var ancestors = element.ancestors();
    return Object.isNumber(expression) ? ancestors[expression] :
      Selector.findElement(ancestors, expression, index);
  },

  down: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return element.firstDescendant();
    return Object.isNumber(expression) ? element.descendants()[expression] :
      Element.select(element, expression)[index || 0];
  },

  previous: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(Selector.handlers.previousElementSibling(element));
    var previousSiblings = element.previousSiblings();
    return Object.isNumber(expression) ? previousSiblings[expression] :
      Selector.findElement(previousSiblings, expression, index);
  },

  next: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(Selector.handlers.nextElementSibling(element));
    var nextSiblings = element.nextSiblings();
    return Object.isNumber(expression) ? nextSiblings[expression] :
      Selector.findElement(nextSiblings, expression, index);
  },

  select: function() {
    var args = $A(arguments), element = $(args.shift());
    return Selector.findChildElements(element, args);
  },

  adjacent: function() {
    var args = $A(arguments), element = $(args.shift());
    return Selector.findChildElements(element.parentNode, args).without(element);
  },

  identify: function(element) {
    element = $(element);
    var id = element.readAttribute('id'), self = arguments.callee;
    if (id) return id;
    do { id = 'anonymous_element_' + self.counter++ } while ($(id));
    element.writeAttribute('id', id);
    return id;
  },

  readAttribute: function(element, name) {
    element = $(element);
    if (Prototype.Browser.IE) {
      var t = Element._attributeTranslations.read;
      if (t.values[name]) return t.values[name](element, name);
      if (t.names[name]) name = t.names[name];
      if (name.include(':')) {
        return (!element.attributes || !element.attributes[name]) ? null :
         element.attributes[name].value;
      }
    }
    return element.getAttribute(name);
  },

  writeAttribute: function(element, name, value) {
    element = $(element);
    var attributes = { }, t = Element._attributeTranslations.write;

    if (typeof name == 'object') attributes = name;
    else attributes[name] = Object.isUndefined(value) ? true : value;

    for (var attr in attributes) {
      name = t.names[attr] || attr;
      value = attributes[attr];
      if (t.values[attr]) name = t.values[attr](element, value);
      if (value === false || value === null)
        element.removeAttribute(name);
      else if (value === true)
        element.setAttribute(name, name);
      else element.setAttribute(name, value);
    }
    return element;
  },

  getHeight: function(element) {
    return $(element).getDimensions().height;
  },

  getWidth: function(element) {
    return $(element).getDimensions().width;
  },

  classNames: function(element) {
    return new Element.ClassNames(element);
  },

  hasClassName: function(element, className) {
    if (!(element = $(element))) return;
    var elementClassName = element.className;
    return (elementClassName.length > 0 && (elementClassName == className ||
      new RegExp("(^|\\s)" + className + "(\\s|$)").test(elementClassName)));
  },

  addClassName: function(element, className) {
    if (!(element = $(element))) return;
    if (!element.hasClassName(className))
      element.className += (element.className ? ' ' : '') + className;
    return element;
  },

  removeClassName: function(element, className) {
    if (!(element = $(element))) return;
    element.className = element.className.replace(
      new RegExp("(^|\\s+)" + className + "(\\s+|$)"), ' ').strip();
    return element;
  },

  toggleClassName: function(element, className) {
    if (!(element = $(element))) return;
    return element[element.hasClassName(className) ?
      'removeClassName' : 'addClassName'](className);
  },

  // removes whitespace-only text node children
  cleanWhitespace: function(element) {
    element = $(element);
    var node = element.firstChild;
    while (node) {
      var nextNode = node.nextSibling;
      if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
        element.removeChild(node);
      node = nextNode;
    }
    return element;
  },

  empty: function(element) {
    return $(element).innerHTML.blank();
  },

  descendantOf: function(element, ancestor) {
    element = $(element), ancestor = $(ancestor);

    if (element.compareDocumentPosition)
      return (element.compareDocumentPosition(ancestor) & 8) === 8;

    if (ancestor.contains)
      return ancestor.contains(element) && ancestor !== element;

    while (element = element.parentNode)
      if (element == ancestor) return true;

    return false;
  },

  scrollTo: function(element) {
    element = $(element);
    var pos = element.cumulativeOffset();
    window.scrollTo(pos[0], pos[1]);
    return element;
  },

  getStyle: function(element, style) {
    element = $(element);
    style = style == 'float' ? 'cssFloat' : style.camelize();
    var value = element.style[style];
    if (!value || value == 'auto') {
      var css = document.defaultView.getComputedStyle(element, null);
      value = css ? css[style] : null;
    }
    if (style == 'opacity') return value ? parseFloat(value) : 1.0;
    return value == 'auto' ? null : value;
  },

  getOpacity: function(element) {
    return $(element).getStyle('opacity');
  },

  setStyle: function(element, styles) {
    element = $(element);
    var elementStyle = element.style, match;
    if (Object.isString(styles)) {
      element.style.cssText += ';' + styles;
      return styles.include('opacity') ?
        element.setOpacity(styles.match(/opacity:\s*(\d?\.?\d*)/)[1]) : element;
    }
    for (var property in styles)
      if (property == 'opacity') element.setOpacity(styles[property]);
      else
        elementStyle[(property == 'float' || property == 'cssFloat') ?
          (Object.isUndefined(elementStyle.styleFloat) ? 'cssFloat' : 'styleFloat') :
            property] = styles[property];

    return element;
  },

  setOpacity: function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1 || value === '') ? '' :
      (value < 0.00001) ? 0 : value;
    return element;
  },

  getDimensions: function(element) {
    element = $(element);
    var display = element.getStyle('display');
    if (display != 'none' && display != null) // Safari bug
      return {width: element.offsetWidth, height: element.offsetHeight};

    // All *Width and *Height properties give 0 on elements with display none,
    // so enable the element temporarily
    var els = element.style;
    var originalVisibility = els.visibility;
    var originalPosition = els.position;
    var originalDisplay = els.display;
    els.visibility = 'hidden';
    els.position = 'absolute';
    els.display = 'block';
    var originalWidth = element.clientWidth;
    var originalHeight = element.clientHeight;
    els.display = originalDisplay;
    els.position = originalPosition;
    els.visibility = originalVisibility;
    return {width: originalWidth, height: originalHeight};
  },

  makePositioned: function(element) {
    element = $(element);
    var pos = Element.getStyle(element, 'position');
    if (pos == 'static' || !pos) {
      element._madePositioned = true;
      element.style.position = 'relative';
      // Opera returns the offset relative to the positioning context, when an
      // element is position relative but top and left have not been defined
      if (Prototype.Browser.Opera) {
        element.style.top = 0;
        element.style.left = 0;
      }
    }
    return element;
  },

  undoPositioned: function(element) {
    element = $(element);
    if (element._madePositioned) {
      element._madePositioned = undefined;
      element.style.position =
        element.style.top =
        element.style.left =
        element.style.bottom =
        element.style.right = '';
    }
    return element;
  },

  makeClipping: function(element) {
    element = $(element);
    if (element._overflow) return element;
    element._overflow = Element.getStyle(element, 'overflow') || 'auto';
    if (element._overflow !== 'hidden')
      element.style.overflow = 'hidden';
    return element;
  },

  undoClipping: function(element) {
    element = $(element);
    if (!element._overflow) return element;
    element.style.overflow = element._overflow == 'auto' ? '' : element._overflow;
    element._overflow = null;
    return element;
  },

  cumulativeOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      element = element.offsetParent;
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

  positionedOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      element = element.offsetParent;
      if (element) {
        if (element.tagName.toUpperCase() == 'BODY') break;
        var p = Element.getStyle(element, 'position');
        if (p !== 'static') break;
      }
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

  absolutize: function(element) {
    element = $(element);
    if (element.getStyle('position') == 'absolute') return element;
    // Position.prepare(); // To be done manually by Scripty when it needs it.

    var offsets = element.positionedOffset();
    var top     = offsets[1];
    var left    = offsets[0];
    var width   = element.clientWidth;
    var height  = element.clientHeight;

    element._originalLeft   = left - parseFloat(element.style.left  || 0);
    element._originalTop    = top  - parseFloat(element.style.top || 0);
    element._originalWidth  = element.style.width;
    element._originalHeight = element.style.height;

    element.style.position = 'absolute';
    element.style.top    = top + 'px';
    element.style.left   = left + 'px';
    element.style.width  = width + 'px';
    element.style.height = height + 'px';
    return element;
  },

  relativize: function(element) {
    element = $(element);
    if (element.getStyle('position') == 'relative') return element;
    // Position.prepare(); // To be done manually by Scripty when it needs it.

    element.style.position = 'relative';
    var top  = parseFloat(element.style.top  || 0) - (element._originalTop || 0);
    var left = parseFloat(element.style.left || 0) - (element._originalLeft || 0);

    element.style.top    = top + 'px';
    element.style.left   = left + 'px';
    element.style.height = element._originalHeight;
    element.style.width  = element._originalWidth;
    return element;
  },

  cumulativeScrollOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.scrollTop  || 0;
      valueL += element.scrollLeft || 0;
      element = element.parentNode;
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

  getOffsetParent: function(element) {
    if (element.offsetParent) return $(element.offsetParent);
    if (element == document.body) return $(element);

    while ((element = element.parentNode) && element != document.body)
      if (Element.getStyle(element, 'position') != 'static')
        return $(element);

    return $(document.body);
  },

  viewportOffset: function(forElement) {
    var valueT = 0, valueL = 0;

    var element = forElement;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;

      // Safari fix
      if (element.offsetParent == document.body &&
        Element.getStyle(element, 'position') == 'absolute') break;

    } while (element = element.offsetParent);

    element = forElement;
    do {
      if (!Prototype.Browser.Opera || (element.tagName && (element.tagName.toUpperCase() == 'BODY'))) {
        valueT -= element.scrollTop  || 0;
        valueL -= element.scrollLeft || 0;
      }
    } while (element = element.parentNode);

    return Element._returnOffset(valueL, valueT);
  },

  clonePosition: function(element, source) {
    var options = Object.extend({
      setLeft:    true,
      setTop:     true,
      setWidth:   true,
      setHeight:  true,
      offsetTop:  0,
      offsetLeft: 0
    }, arguments[2] || { });

    // find page position of source
    source = $(source);
    var p = source.viewportOffset();

    // find coordinate system to use
    element = $(element);
    var delta = [0, 0];
    var parent = null;
    // delta [0,0] will do fine with position: fixed elements,
    // position:absolute needs offsetParent deltas
    if (Element.getStyle(element, 'position') == 'absolute') {
      parent = element.getOffsetParent();
      delta = parent.viewportOffset();
    }

    // correct by body offsets (fixes Safari)
    if (parent == document.body) {
      delta[0] -= document.body.offsetLeft;
      delta[1] -= document.body.offsetTop;
    }

    // set position
    if (options.setLeft)   element.style.left  = (p[0] - delta[0] + options.offsetLeft) + 'px';
    if (options.setTop)    element.style.top   = (p[1] - delta[1] + options.offsetTop) + 'px';
    if (options.setWidth)  element.style.width = source.offsetWidth + 'px';
    if (options.setHeight) element.style.height = source.offsetHeight + 'px';
    return element;
  }
};

Element.Methods.identify.counter = 1;

Object.extend(Element.Methods, {
  getElementsBySelector: Element.Methods.select,
  childElements: Element.Methods.immediateDescendants
});

Element._attributeTranslations = {
  write: {
    names: {
      className: 'class',
      htmlFor:   'for'
    },
    values: { }
  }
};

if (Prototype.Browser.Opera) {
  Element.Methods.getStyle = Element.Methods.getStyle.wrap(
    function(proceed, element, style) {
      switch (style) {
        case 'left': case 'top': case 'right': case 'bottom':
          if (proceed(element, 'position') === 'static') return null;
        case 'height': case 'width':
          // returns '0px' for hidden elements; we want it to return null
          if (!Element.visible(element)) return null;

          // returns the border-box dimensions rather than the content-box
          // dimensions, so we subtract padding and borders from the value
          var dim = parseInt(proceed(element, style), 10);

          if (dim !== element['offset' + style.capitalize()])
            return dim + 'px';

          var properties;
          if (style === 'height') {
            properties = ['border-top-width', 'padding-top',
             'padding-bottom', 'border-bottom-width'];
          }
          else {
            properties = ['border-left-width', 'padding-left',
             'padding-right', 'border-right-width'];
          }
          return properties.inject(dim, function(memo, property) {
            var val = proceed(element, property);
            return val === null ? memo : memo - parseInt(val, 10);
          }) + 'px';
        default: return proceed(element, style);
      }
    }
  );

  Element.Methods.readAttribute = Element.Methods.readAttribute.wrap(
    function(proceed, element, attribute) {
      if (attribute === 'title') return element.title;
      return proceed(element, attribute);
    }
  );
}

else if (Prototype.Browser.IE) {
  // IE doesn't report offsets correctly for static elements, so we change them
  // to "relative" to get the values, then change them back.
  Element.Methods.getOffsetParent = Element.Methods.getOffsetParent.wrap(
    function(proceed, element) {
      element = $(element);
      // IE throws an error if element is not in document
      try { element.offsetParent }
      catch(e) { return $(document.body) }
      var position = element.getStyle('position');
      if (position !== 'static') return proceed(element);
      element.setStyle({ position: 'relative' });
      var value = proceed(element);
      element.setStyle({ position: position });
      return value;
    }
  );

  $w('positionedOffset viewportOffset').each(function(method) {
    Element.Methods[method] = Element.Methods[method].wrap(
      function(proceed, element) {
        element = $(element);
        try { element.offsetParent }
        catch(e) { return Element._returnOffset(0,0) }
        var position = element.getStyle('position');
        if (position !== 'static') return proceed(element);
        // Trigger hasLayout on the offset parent so that IE6 reports
        // accurate offsetTop and offsetLeft values for position: fixed.
        var offsetParent = element.getOffsetParent();
        if (offsetParent && offsetParent.getStyle('position') === 'fixed')
          offsetParent.setStyle({ zoom: 1 });
        element.setStyle({ position: 'relative' });
        var value = proceed(element);
        element.setStyle({ position: position });
        return value;
      }
    );
  });

  Element.Methods.cumulativeOffset = Element.Methods.cumulativeOffset.wrap(
    function(proceed, element) {
      try { element.offsetParent }
      catch(e) { return Element._returnOffset(0,0) }
      return proceed(element);
    }
  );

  Element.Methods.getStyle = function(element, style) {
    element = $(element);
    style = (style == 'float' || style == 'cssFloat') ? 'styleFloat' : style.camelize();
    var value = element.style[style];
    if (!value && element.currentStyle) value = element.currentStyle[style];

    if (style == 'opacity') {
      if (value = (element.getStyle('filter') || '').match(/alpha\(opacity=(.*)\)/))
        if (value[1]) return parseFloat(value[1]) / 100;
      return 1.0;
    }

    if (value == 'auto') {
      if ((style == 'width' || style == 'height') && (element.getStyle('display') != 'none'))
        return element['offset' + style.capitalize()] + 'px';
      return null;
    }
    return value;
  };

  Element.Methods.setOpacity = function(element, value) {
    function stripAlpha(filter){
      return filter.replace(/alpha\([^\)]*\)/gi,'');
    }
    element = $(element);
    var currentStyle = element.currentStyle;
    if ((currentStyle && !currentStyle.hasLayout) ||
      (!currentStyle && element.style.zoom == 'normal'))
        element.style.zoom = 1;

    var filter = element.getStyle('filter'), style = element.style;
    if (value == 1 || value === '') {
      (filter = stripAlpha(filter)) ?
        style.filter = filter : style.removeAttribute('filter');
      return element;
    } else if (value < 0.00001) value = 0;
    style.filter = stripAlpha(filter) +
      'alpha(opacity=' + (value * 100) + ')';
    return element;
  };

  Element._attributeTranslations = {
    read: {
      names: {
        'class': 'className',
        'for':   'htmlFor'
      },
      values: {
        _getAttr: function(element, attribute) {
          return element.getAttribute(attribute, 2);
        },
        _getAttrNode: function(element, attribute) {
          var node = element.getAttributeNode(attribute);
          return node ? node.value : "";
        },
        _getEv: function(element, attribute) {
          attribute = element.getAttribute(attribute);
          return attribute ? attribute.toString().slice(23, -2) : null;
        },
        _flag: function(element, attribute) {
          return $(element).hasAttribute(attribute) ? attribute : null;
        },
        style: function(element) {
          return element.style.cssText.toLowerCase();
        },
        title: function(element) {
          return element.title;
        }
      }
    }
  };

  Element._attributeTranslations.write = {
    names: Object.extend({
      cellpadding: 'cellPadding',
      cellspacing: 'cellSpacing'
    }, Element._attributeTranslations.read.names),
    values: {
      checked: function(element, value) {
        element.checked = !!value;
      },

      style: function(element, value) {
        element.style.cssText = value ? value : '';
      }
    }
  };

  Element._attributeTranslations.has = {};

  $w('colSpan rowSpan vAlign dateTime accessKey tabIndex ' +
      'encType maxLength readOnly longDesc frameBorder').each(function(attr) {
    Element._attributeTranslations.write.names[attr.toLowerCase()] = attr;
    Element._attributeTranslations.has[attr.toLowerCase()] = attr;
  });

  (function(v) {
    Object.extend(v, {
      href:        v._getAttr,
      src:         v._getAttr,
      type:        v._getAttr,
      action:      v._getAttrNode,
      disabled:    v._flag,
      checked:     v._flag,
      readonly:    v._flag,
      multiple:    v._flag,
      onload:      v._getEv,
      onunload:    v._getEv,
      onclick:     v._getEv,
      ondblclick:  v._getEv,
      onmousedown: v._getEv,
      onmouseup:   v._getEv,
      onmouseover: v._getEv,
      onmousemove: v._getEv,
      onmouseout:  v._getEv,
      onfocus:     v._getEv,
      onblur:      v._getEv,
      onkeypress:  v._getEv,
      onkeydown:   v._getEv,
      onkeyup:     v._getEv,
      onsubmit:    v._getEv,
      onreset:     v._getEv,
      onselect:    v._getEv,
      onchange:    v._getEv
    });
  })(Element._attributeTranslations.read.values);
}

else if (Prototype.Browser.Gecko && /rv:1\.8\.0/.test(navigator.userAgent)) {
  Element.Methods.setOpacity = function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1) ? 0.999999 :
      (value === '') ? '' : (value < 0.00001) ? 0 : value;
    return element;
  };
}

else if (Prototype.Browser.WebKit) {
  Element.Methods.setOpacity = function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1 || value === '') ? '' :
      (value < 0.00001) ? 0 : value;

    if (value == 1)
      if(element.tagName.toUpperCase() == 'IMG' && element.width) {
        element.width++; element.width--;
      } else try {
        var n = document.createTextNode(' ');
        element.appendChild(n);
        element.removeChild(n);
      } catch (e) { }

    return element;
  };

  // Safari returns margins on body which is incorrect if the child is absolutely
  // positioned.  For performance reasons, redefine Element#cumulativeOffset for
  // KHTML/WebKit only.
  Element.Methods.cumulativeOffset = function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      if (element.offsetParent == document.body)
        if (Element.getStyle(element, 'position') == 'absolute') break;

      element = element.offsetParent;
    } while (element);

    return Element._returnOffset(valueL, valueT);
  };
}

if (Prototype.Browser.IE || Prototype.Browser.Opera) {
  // IE and Opera are missing .innerHTML support for TABLE-related and SELECT elements
  Element.Methods.update = function(element, content) {
    element = $(element);

    if (content && content.toElement) content = content.toElement();
    if (Object.isElement(content)) return element.update().insert(content);

    content = Object.toHTML(content);
    var tagName = element.tagName.toUpperCase();

    if (tagName in Element._insertionTranslations.tags) {
      $A(element.childNodes).each(function(node) { element.removeChild(node) });
      Element._getContentFromAnonymousElement(tagName, content.stripScripts())
        .each(function(node) { element.appendChild(node) });
    }
    else element.innerHTML = content.stripScripts();

    content.evalScripts.bind(content).defer();
    return element;
  };
}

if ('outerHTML' in document.createElement('div')) {
  Element.Methods.replace = function(element, content) {
    element = $(element);

    if (content && content.toElement) content = content.toElement();
    if (Object.isElement(content)) {
      element.parentNode.replaceChild(content, element);
      return element;
    }

    content = Object.toHTML(content);
    var parent = element.parentNode, tagName = parent.tagName.toUpperCase();

    if (Element._insertionTranslations.tags[tagName]) {
      var nextSibling = element.next();
      var fragments = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
      parent.removeChild(element);
      if (nextSibling)
        fragments.each(function(node) { parent.insertBefore(node, nextSibling) });
      else
        fragments.each(function(node) { parent.appendChild(node) });
    }
    else element.outerHTML = content.stripScripts();

    content.evalScripts.bind(content).defer();
    return element;
  };
}

Element._returnOffset = function(l, t) {
  var result = [l, t];
  result.left = l;
  result.top = t;
  return result;
};

Element._getContentFromAnonymousElement = function(tagName, html) {
  var div = new Element('div'), t = Element._insertionTranslations.tags[tagName];
  if (t) {
    div.innerHTML = t[0] + html + t[1];
    t[2].times(function() { div = div.firstChild });
  } else div.innerHTML = html;
  return $A(div.childNodes);
};

Element._insertionTranslations = {
  before: function(element, node) {
    element.parentNode.insertBefore(node, element);
  },
  top: function(element, node) {
    element.insertBefore(node, element.firstChild);
  },
  bottom: function(element, node) {
    element.appendChild(node);
  },
  after: function(element, node) {
    element.parentNode.insertBefore(node, element.nextSibling);
  },
  tags: {
    TABLE:  ['<table>',                '</table>',                   1],
    TBODY:  ['<table><tbody>',         '</tbody></table>',           2],
    TR:     ['<table><tbody><tr>',     '</tr></tbody></table>',      3],
    TD:     ['<table><tbody><tr><td>', '</td></tr></tbody></table>', 4],
    SELECT: ['<select>',               '</select>',                  1]
  }
};

(function() {
  Object.extend(this.tags, {
    THEAD: this.tags.TBODY,
    TFOOT: this.tags.TBODY,
    TH:    this.tags.TD
  });
}).call(Element._insertionTranslations);

Element.Methods.Simulated = {
  hasAttribute: function(element, attribute) {
    attribute = Element._attributeTranslations.has[attribute] || attribute;
    var node = $(element).getAttributeNode(attribute);
    return !!(node && node.specified);
  }
};

Element.Methods.ByTag = { };

Object.extend(Element, Element.Methods);

if (!Prototype.BrowserFeatures.ElementExtensions &&
    document.createElement('div')['__proto__']) {
  window.HTMLElement = { };
  window.HTMLElement.prototype = document.createElement('div')['__proto__'];
  Prototype.BrowserFeatures.ElementExtensions = true;
}

Element.extend = (function() {
  if (Prototype.BrowserFeatures.SpecificElementExtensions)
    return Prototype.K;

  var Methods = { }, ByTag = Element.Methods.ByTag;

  var extend = Object.extend(function(element) {
    if (!element || element._extendedByPrototype ||
        element.nodeType != 1 || element == window) return element;

    var methods = Object.clone(Methods),
      tagName = element.tagName.toUpperCase(), property, value;

    // extend methods for specific tags
    if (ByTag[tagName]) Object.extend(methods, ByTag[tagName]);

    for (property in methods) {
      value = methods[property];
      if (Object.isFunction(value) && !(property in element))
        element[property] = value.methodize();
    }

    element._extendedByPrototype = Prototype.emptyFunction;
    return element;

  }, {
    refresh: function() {
      // extend methods for all tags (Safari doesn't need this)
      if (!Prototype.BrowserFeatures.ElementExtensions) {
        Object.extend(Methods, Element.Methods);
        Object.extend(Methods, Element.Methods.Simulated);
      }
    }
  });

  extend.refresh();
  return extend;
})();

Element.hasAttribute = function(element, attribute) {
  if (element.hasAttribute) return element.hasAttribute(attribute);
  return Element.Methods.Simulated.hasAttribute(element, attribute);
};

Element.addMethods = function(methods) {
  var F = Prototype.BrowserFeatures, T = Element.Methods.ByTag;

  if (!methods) {
    Object.extend(Form, Form.Methods);
    Object.extend(Form.Element, Form.Element.Methods);
    Object.extend(Element.Methods.ByTag, {
      "FORM":     Object.clone(Form.Methods),
      "INPUT":    Object.clone(Form.Element.Methods),
      "SELECT":   Object.clone(Form.Element.Methods),
      "TEXTAREA": Object.clone(Form.Element.Methods)
    });
  }

  if (arguments.length == 2) {
    var tagName = methods;
    methods = arguments[1];
  }

  if (!tagName) Object.extend(Element.Methods, methods || { });
  else {
    if (Object.isArray(tagName)) tagName.each(extend);
    else extend(tagName);
  }

  function extend(tagName) {
    tagName = tagName.toUpperCase();
    if (!Element.Methods.ByTag[tagName])
      Element.Methods.ByTag[tagName] = { };
    Object.extend(Element.Methods.ByTag[tagName], methods);
  }

  function copy(methods, destination, onlyIfAbsent) {
    onlyIfAbsent = onlyIfAbsent || false;
    for (var property in methods) {
      var value = methods[property];
      if (!Object.isFunction(value)) continue;
      if (!onlyIfAbsent || !(property in destination))
        destination[property] = value.methodize();
    }
  }

  function findDOMClass(tagName) {
    var klass;
    var trans = {
      "OPTGROUP": "OptGroup", "TEXTAREA": "TextArea", "P": "Paragraph",
      "FIELDSET": "FieldSet", "UL": "UList", "OL": "OList", "DL": "DList",
      "DIR": "Directory", "H1": "Heading", "H2": "Heading", "H3": "Heading",
      "H4": "Heading", "H5": "Heading", "H6": "Heading", "Q": "Quote",
      "INS": "Mod", "DEL": "Mod", "A": "Anchor", "IMG": "Image", "CAPTION":
      "TableCaption", "COL": "TableCol", "COLGROUP": "TableCol", "THEAD":
      "TableSection", "TFOOT": "TableSection", "TBODY": "TableSection", "TR":
      "TableRow", "TH": "TableCell", "TD": "TableCell", "FRAMESET":
      "FrameSet", "IFRAME": "IFrame"
    };
    if (trans[tagName]) klass = 'HTML' + trans[tagName] + 'Element';
    if (window[klass]) return window[klass];
    klass = 'HTML' + tagName + 'Element';
    if (window[klass]) return window[klass];
    klass = 'HTML' + tagName.capitalize() + 'Element';
    if (window[klass]) return window[klass];

    window[klass] = { };
    window[klass].prototype = document.createElement(tagName)['__proto__'];
    return window[klass];
  }

  if (F.ElementExtensions) {
    copy(Element.Methods, HTMLElement.prototype);
    copy(Element.Methods.Simulated, HTMLElement.prototype, true);
  }

  if (F.SpecificElementExtensions) {
    for (var tag in Element.Methods.ByTag) {
      var klass = findDOMClass(tag);
      if (Object.isUndefined(klass)) continue;
      copy(T[tag], klass.prototype);
    }
  }

  Object.extend(Element, Element.Methods);
  delete Element.ByTag;

  if (Element.extend.refresh) Element.extend.refresh();
  Element.cache = { };
};

document.viewport = {
  getDimensions: function() {
    var dimensions = { }, B = Prototype.Browser;
    $w('width height').each(function(d) {
      var D = d.capitalize();
      if (B.WebKit && !document.evaluate) {
        // Safari <3.0 needs self.innerWidth/Height
        dimensions[d] = self['inner' + D];
      } else if (B.Opera && parseFloat(window.opera.version()) < 9.5) {
        // Opera <9.5 needs document.body.clientWidth/Height
        dimensions[d] = document.body['client' + D]
      } else {
        dimensions[d] = document.documentElement['client' + D];
      }
    });
    return dimensions;
  },

  getWidth: function() {
    return this.getDimensions().width;
  },

  getHeight: function() {
    return this.getDimensions().height;
  },

  getScrollOffsets: function() {
    return Element._returnOffset(
      window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
      window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop);
  }
};
/* Portions of the Selector class are derived from Jack Slocum's DomQuery,
 * part of YUI-Ext version 0.40, distributed under the terms of an MIT-style
 * license.  Please see http://www.yui-ext.com/ for more information. */

var Selector = Class.create({
  initialize: function(expression) {
    this.expression = expression.strip();

    if (this.shouldUseSelectorsAPI()) {
      this.mode = 'selectorsAPI';
    } else if (this.shouldUseXPath()) {
      this.mode = 'xpath';
      this.compileXPathMatcher();
    } else {
      this.mode = "normal";
      this.compileMatcher();
    }

  },

  shouldUseXPath: function() {
    if (!Prototype.BrowserFeatures.XPath) return false;

    var e = this.expression;

    // Safari 3 chokes on :*-of-type and :empty
    if (Prototype.Browser.WebKit &&
     (e.include("-of-type") || e.include(":empty")))
      return false;

    // XPath can't do namespaced attributes, nor can it read
    // the "checked" property from DOM nodes
    if ((/(\[[\w-]*?:|:checked)/).test(e))
      return false;

    return true;
  },

  shouldUseSelectorsAPI: function() {
    if (!Prototype.BrowserFeatures.SelectorsAPI) return false;

    if (!Selector._div) Selector._div = new Element('div');

    // Make sure the browser treats the selector as valid. Test on an
    // isolated element to minimize cost of this check.
    try {
      Selector._div.querySelector(this.expression);
    } catch(e) {
      return false;
    }

    return true;
  },

  compileMatcher: function() {
    var e = this.expression, ps = Selector.patterns, h = Selector.handlers,
        c = Selector.criteria, le, p, m;

    if (Selector._cache[e]) {
      this.matcher = Selector._cache[e];
      return;
    }

    this.matcher = ["this.matcher = function(root) {",
                    "var r = root, h = Selector.handlers, c = false, n;"];

    while (e && le != e && (/\S/).test(e)) {
      le = e;
      for (var i in ps) {
        p = ps[i];
        if (m = e.match(p)) {
          this.matcher.push(Object.isFunction(c[i]) ? c[i](m) :
            new Template(c[i]).evaluate(m));
          e = e.replace(m[0], '');
          break;
        }
      }
    }

    this.matcher.push("return h.unique(n);\n}");
    eval(this.matcher.join('\n'));
    Selector._cache[this.expression] = this.matcher;
  },

  compileXPathMatcher: function() {
    var e = this.expression, ps = Selector.patterns,
        x = Selector.xpath, le, m;

    if (Selector._cache[e]) {
      this.xpath = Selector._cache[e]; return;
    }

    this.matcher = ['.//*'];
    while (e && le != e && (/\S/).test(e)) {
      le = e;
      for (var i in ps) {
        if (m = e.match(ps[i])) {
          this.matcher.push(Object.isFunction(x[i]) ? x[i](m) :
            new Template(x[i]).evaluate(m));
          e = e.replace(m[0], '');
          break;
        }
      }
    }

    this.xpath = this.matcher.join('');
    Selector._cache[this.expression] = this.xpath;
  },

  findElements: function(root) {
    root = root || document;
    var e = this.expression, results;

    switch (this.mode) {
      case 'selectorsAPI':
        // querySelectorAll queries document-wide, then filters to descendants
        // of the context element. That's not what we want.
        // Add an explicit context to the selector if necessary.
        if (root !== document) {
          var oldId = root.id, id = $(root).identify();
          e = "#" + id + " " + e;
        }

        results = $A(root.querySelectorAll(e)).map(Element.extend);
        root.id = oldId;

        return results;
      case 'xpath':
        return document._getElementsByXPath(this.xpath, root);
      default:
       return this.matcher(root);
    }
  },

  match: function(element) {
    this.tokens = [];

    var e = this.expression, ps = Selector.patterns, as = Selector.assertions;
    var le, p, m;

    while (e && le !== e && (/\S/).test(e)) {
      le = e;
      for (var i in ps) {
        p = ps[i];
        if (m = e.match(p)) {
          // use the Selector.assertions methods unless the selector
          // is too complex.
          if (as[i]) {
            this.tokens.push([i, Object.clone(m)]);
            e = e.replace(m[0], '');
          } else {
            // reluctantly do a document-wide search
            // and look for a match in the array
            return this.findElements(document).include(element);
          }
        }
      }
    }

    var match = true, name, matches;
    for (var i = 0, token; token = this.tokens[i]; i++) {
      name = token[0], matches = token[1];
      if (!Selector.assertions[name](element, matches)) {
        match = false; break;
      }
    }

    return match;
  },

  toString: function() {
    return this.expression;
  },

  inspect: function() {
    return "#<Selector:" + this.expression.inspect() + ">";
  }
});

Object.extend(Selector, {
  _cache: { },

  xpath: {
    descendant:   "//*",
    child:        "/*",
    adjacent:     "/following-sibling::*[1]",
    laterSibling: '/following-sibling::*',
    tagName:      function(m) {
      if (m[1] == '*') return '';
      return "[local-name()='" + m[1].toLowerCase() +
             "' or local-name()='" + m[1].toUpperCase() + "']";
    },
    className:    "[contains(concat(' ', @class, ' '), ' #{1} ')]",
    id:           "[@id='#{1}']",
    attrPresence: function(m) {
      m[1] = m[1].toLowerCase();
      return new Template("[@#{1}]").evaluate(m);
    },
    attr: function(m) {
      m[1] = m[1].toLowerCase();
      m[3] = m[5] || m[6];
      return new Template(Selector.xpath.operators[m[2]]).evaluate(m);
    },
    pseudo: function(m) {
      var h = Selector.xpath.pseudos[m[1]];
      if (!h) return '';
      if (Object.isFunction(h)) return h(m);
      return new Template(Selector.xpath.pseudos[m[1]]).evaluate(m);
    },
    operators: {
      '=':  "[@#{1}='#{3}']",
      '!=': "[@#{1}!='#{3}']",
      '^=': "[starts-with(@#{1}, '#{3}')]",
      '$=': "[substring(@#{1}, (string-length(@#{1}) - string-length('#{3}') + 1))='#{3}']",
      '*=': "[contains(@#{1}, '#{3}')]",
      '~=': "[contains(concat(' ', @#{1}, ' '), ' #{3} ')]",
      '|=': "[contains(concat('-', @#{1}, '-'), '-#{3}-')]"
    },
    pseudos: {
      'first-child': '[not(preceding-sibling::*)]',
      'last-child':  '[not(following-sibling::*)]',
      'only-child':  '[not(preceding-sibling::* or following-sibling::*)]',
      'empty':       "[count(*) = 0 and (count(text()) = 0)]",
      'checked':     "[@checked]",
      'disabled':    "[(@disabled) and (@type!='hidden')]",
      'enabled':     "[not(@disabled) and (@type!='hidden')]",
      'not': function(m) {
        var e = m[6], p = Selector.patterns,
            x = Selector.xpath, le, v;

        var exclusion = [];
        while (e && le != e && (/\S/).test(e)) {
          le = e;
          for (var i in p) {
            if (m = e.match(p[i])) {
              v = Object.isFunction(x[i]) ? x[i](m) : new Template(x[i]).evaluate(m);
              exclusion.push("(" + v.substring(1, v.length - 1) + ")");
              e = e.replace(m[0], '');
              break;
            }
          }
        }
        return "[not(" + exclusion.join(" and ") + ")]";
      },
      'nth-child':      function(m) {
        return Selector.xpath.pseudos.nth("(count(./preceding-sibling::*) + 1) ", m);
      },
      'nth-last-child': function(m) {
        return Selector.xpath.pseudos.nth("(count(./following-sibling::*) + 1) ", m);
      },
      'nth-of-type':    function(m) {
        return Selector.xpath.pseudos.nth("position() ", m);
      },
      'nth-last-of-type': function(m) {
        return Selector.xpath.pseudos.nth("(last() + 1 - position()) ", m);
      },
      'first-of-type':  function(m) {
        m[6] = "1"; return Selector.xpath.pseudos['nth-of-type'](m);
      },
      'last-of-type':   function(m) {
        m[6] = "1"; return Selector.xpath.pseudos['nth-last-of-type'](m);
      },
      'only-of-type':   function(m) {
        var p = Selector.xpath.pseudos; return p['first-of-type'](m) + p['last-of-type'](m);
      },
      nth: function(fragment, m) {
        var mm, formula = m[6], predicate;
        if (formula == 'even') formula = '2n+0';
        if (formula == 'odd')  formula = '2n+1';
        if (mm = formula.match(/^(\d+)$/)) // digit only
          return '[' + fragment + "= " + mm[1] + ']';
        if (mm = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
          if (mm[1] == "-") mm[1] = -1;
          var a = mm[1] ? Number(mm[1]) : 1;
          var b = mm[2] ? Number(mm[2]) : 0;
          predicate = "[((#{fragment} - #{b}) mod #{a} = 0) and " +
          "((#{fragment} - #{b}) div #{a} >= 0)]";
          return new Template(predicate).evaluate({
            fragment: fragment, a: a, b: b });
        }
      }
    }
  },

  criteria: {
    tagName:      'n = h.tagName(n, r, "#{1}", c);      c = false;',
    className:    'n = h.className(n, r, "#{1}", c);    c = false;',
    id:           'n = h.id(n, r, "#{1}", c);           c = false;',
    attrPresence: 'n = h.attrPresence(n, r, "#{1}", c); c = false;',
    attr: function(m) {
      m[3] = (m[5] || m[6]);
      return new Template('n = h.attr(n, r, "#{1}", "#{3}", "#{2}", c); c = false;').evaluate(m);
    },
    pseudo: function(m) {
      if (m[6]) m[6] = m[6].replace(/"/g, '\\"');
      return new Template('n = h.pseudo(n, "#{1}", "#{6}", r, c); c = false;').evaluate(m);
    },
    descendant:   'c = "descendant";',
    child:        'c = "child";',
    adjacent:     'c = "adjacent";',
    laterSibling: 'c = "laterSibling";'
  },

  patterns: {
    // combinators must be listed first
    // (and descendant needs to be last combinator)
    laterSibling: /^\s*~\s*/,
    child:        /^\s*>\s*/,
    adjacent:     /^\s*\+\s*/,
    descendant:   /^\s/,

    // selectors follow
    tagName:      /^\s*(\*|[\w\-]+)(\b|$)?/,
    id:           /^#([\w\-\*]+)(\b|$)/,
    className:    /^\.([\w\-\*]+)(\b|$)/,
    pseudo:
/^:((first|last|nth|nth-last|only)(-child|-of-type)|empty|checked|(en|dis)abled|not)(\((.*?)\))?(\b|$|(?=\s|[:+~>]))/,
    attrPresence: /^\[((?:[\w]+:)?[\w]+)\]/,
    attr:         /\[((?:[\w-]*:)?[\w-]+)\s*(?:([!^$*~|]?=)\s*((['"])([^\4]*?)\4|([^'"][^\]]*?)))?\]/
  },

  // for Selector.match and Element#match
  assertions: {
    tagName: function(element, matches) {
      return matches[1].toUpperCase() == element.tagName.toUpperCase();
    },

    className: function(element, matches) {
      return Element.hasClassName(element, matches[1]);
    },

    id: function(element, matches) {
      return element.id === matches[1];
    },

    attrPresence: function(element, matches) {
      return Element.hasAttribute(element, matches[1]);
    },

    attr: function(element, matches) {
      var nodeValue = Element.readAttribute(element, matches[1]);
      return nodeValue && Selector.operators[matches[2]](nodeValue, matches[5] || matches[6]);
    }
  },

  handlers: {
    // UTILITY FUNCTIONS
    // joins two collections
    concat: function(a, b) {
      for (var i = 0, node; node = b[i]; i++)
        a.push(node);
      return a;
    },

    // marks an array of nodes for counting
    mark: function(nodes) {
      var _true = Prototype.emptyFunction;
      for (var i = 0, node; node = nodes[i]; i++)
        node._countedByPrototype = _true;
      return nodes;
    },

    unmark: function(nodes) {
      for (var i = 0, node; node = nodes[i]; i++)
        node._countedByPrototype = undefined;
      return nodes;
    },

    // mark each child node with its position (for nth calls)
    // "ofType" flag indicates whether we're indexing for nth-of-type
    // rather than nth-child
    index: function(parentNode, reverse, ofType) {
      parentNode._countedByPrototype = Prototype.emptyFunction;
      if (reverse) {
        for (var nodes = parentNode.childNodes, i = nodes.length - 1, j = 1; i >= 0; i--) {
          var node = nodes[i];
          if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;
        }
      } else {
        for (var i = 0, j = 1, nodes = parentNode.childNodes; node = nodes[i]; i++)
          if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;
      }
    },

    // filters out duplicates and extends all nodes
    unique: function(nodes) {
      if (nodes.length == 0) return nodes;
      var results = [], n;
      for (var i = 0, l = nodes.length; i < l; i++)
        if (!(n = nodes[i])._countedByPrototype) {
          n._countedByPrototype = Prototype.emptyFunction;
          results.push(Element.extend(n));
        }
      return Selector.handlers.unmark(results);
    },

    // COMBINATOR FUNCTIONS
    descendant: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        h.concat(results, node.getElementsByTagName('*'));
      return results;
    },

    child: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        for (var j = 0, child; child = node.childNodes[j]; j++)
          if (child.nodeType == 1 && child.tagName != '!') results.push(child);
      }
      return results;
    },

    adjacent: function(nodes) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        var next = this.nextElementSibling(node);
        if (next) results.push(next);
      }
      return results;
    },

    laterSibling: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        h.concat(results, Element.nextSiblings(node));
      return results;
    },

    nextElementSibling: function(node) {
      while (node = node.nextSibling)
        if (node.nodeType == 1) return node;
      return null;
    },

    previousElementSibling: function(node) {
      while (node = node.previousSibling)
        if (node.nodeType == 1) return node;
      return null;
    },

    // TOKEN FUNCTIONS
    tagName: function(nodes, root, tagName, combinator) {
      var uTagName = tagName.toUpperCase();
      var results = [], h = Selector.handlers;
      if (nodes) {
        if (combinator) {
          // fastlane for ordinary descendant combinators
          if (combinator == "descendant") {
            for (var i = 0, node; node = nodes[i]; i++)
              h.concat(results, node.getElementsByTagName(tagName));
            return results;
          } else nodes = this[combinator](nodes);
          if (tagName == "*") return nodes;
        }
        for (var i = 0, node; node = nodes[i]; i++)
          if (node.tagName.toUpperCase() === uTagName) results.push(node);
        return results;
      } else return root.getElementsByTagName(tagName);
    },

    id: function(nodes, root, id, combinator) {
      var targetNode = $(id), h = Selector.handlers;
      if (!targetNode) return [];
      if (!nodes && root == document) return [targetNode];
      if (nodes) {
        if (combinator) {
          if (combinator == 'child') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (targetNode.parentNode == node) return [targetNode];
          } else if (combinator == 'descendant') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (Element.descendantOf(targetNode, node)) return [targetNode];
          } else if (combinator == 'adjacent') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (Selector.handlers.previousElementSibling(targetNode) == node)
                return [targetNode];
          } else nodes = h[combinator](nodes);
        }
        for (var i = 0, node; node = nodes[i]; i++)
          if (node == targetNode) return [targetNode];
        return [];
      }
      return (targetNode && Element.descendantOf(targetNode, root)) ? [targetNode] : [];
    },

    className: function(nodes, root, className, combinator) {
      if (nodes && combinator) nodes = this[combinator](nodes);
      return Selector.handlers.byClassName(nodes, root, className);
    },

    byClassName: function(nodes, root, className) {
      if (!nodes) nodes = Selector.handlers.descendant([root]);
      var needle = ' ' + className + ' ';
      for (var i = 0, results = [], node, nodeClassName; node = nodes[i]; i++) {
        nodeClassName = node.className;
        if (nodeClassName.length == 0) continue;
        if (nodeClassName == className || (' ' + nodeClassName + ' ').include(needle))
          results.push(node);
      }
      return results;
    },

    attrPresence: function(nodes, root, attr, combinator) {
      if (!nodes) nodes = root.getElementsByTagName("*");
      if (nodes && combinator) nodes = this[combinator](nodes);
      var results = [];
      for (var i = 0, node; node = nodes[i]; i++)
        if (Element.hasAttribute(node, attr)) results.push(node);
      return results;
    },

    attr: function(nodes, root, attr, value, operator, combinator) {
      if (!nodes) nodes = root.getElementsByTagName("*");
      if (nodes && combinator) nodes = this[combinator](nodes);
      var handler = Selector.operators[operator], results = [];
      for (var i = 0, node; node = nodes[i]; i++) {
        var nodeValue = Element.readAttribute(node, attr);
        if (nodeValue === null) continue;
        if (handler(nodeValue, value)) results.push(node);
      }
      return results;
    },

    pseudo: function(nodes, name, value, root, combinator) {
      if (nodes && combinator) nodes = this[combinator](nodes);
      if (!nodes) nodes = root.getElementsByTagName("*");
      return Selector.pseudos[name](nodes, value, root);
    }
  },

  pseudos: {
    'first-child': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        if (Selector.handlers.previousElementSibling(node)) continue;
          results.push(node);
      }
      return results;
    },
    'last-child': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        if (Selector.handlers.nextElementSibling(node)) continue;
          results.push(node);
      }
      return results;
    },
    'only-child': function(nodes, value, root) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!h.previousElementSibling(node) && !h.nextElementSibling(node))
          results.push(node);
      return results;
    },
    'nth-child':        function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root);
    },
    'nth-last-child':   function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, true);
    },
    'nth-of-type':      function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, false, true);
    },
    'nth-last-of-type': function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, true, true);
    },
    'first-of-type':    function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, "1", root, false, true);
    },
    'last-of-type':     function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, "1", root, true, true);
    },
    'only-of-type':     function(nodes, formula, root) {
      var p = Selector.pseudos;
      return p['last-of-type'](p['first-of-type'](nodes, formula, root), formula, root);
    },

    // handles the an+b logic
    getIndices: function(a, b, total) {
      if (a == 0) return b > 0 ? [b] : [];
      return $R(1, total).inject([], function(memo, i) {
        if (0 == (i - b) % a && (i - b) / a >= 0) memo.push(i);
        return memo;
      });
    },

    // handles nth(-last)-child, nth(-last)-of-type, and (first|last)-of-type
    nth: function(nodes, formula, root, reverse, ofType) {
      if (nodes.length == 0) return [];
      if (formula == 'even') formula = '2n+0';
      if (formula == 'odd')  formula = '2n+1';
      var h = Selector.handlers, results = [], indexed = [], m;
      h.mark(nodes);
      for (var i = 0, node; node = nodes[i]; i++) {
        if (!node.parentNode._countedByPrototype) {
          h.index(node.parentNode, reverse, ofType);
          indexed.push(node.parentNode);
        }
      }
      if (formula.match(/^\d+$/)) { // just a number
        formula = Number(formula);
        for (var i = 0, node; node = nodes[i]; i++)
          if (node.nodeIndex == formula) results.push(node);
      } else if (m = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
        if (m[1] == "-") m[1] = -1;
        var a = m[1] ? Number(m[1]) : 1;
        var b = m[2] ? Number(m[2]) : 0;
        var indices = Selector.pseudos.getIndices(a, b, nodes.length);
        for (var i = 0, node, l = indices.length; node = nodes[i]; i++) {
          for (var j = 0; j < l; j++)
            if (node.nodeIndex == indices[j]) results.push(node);
        }
      }
      h.unmark(nodes);
      h.unmark(indexed);
      return results;
    },

    'empty': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        // IE treats comments as element nodes
        if (node.tagName == '!' || node.firstChild) continue;
        results.push(node);
      }
      return results;
    },

    'not': function(nodes, selector, root) {
      var h = Selector.handlers, selectorType, m;
      var exclusions = new Selector(selector).findElements(root);
      h.mark(exclusions);
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!node._countedByPrototype) results.push(node);
      h.unmark(exclusions);
      return results;
    },

    'enabled': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!node.disabled && (!node.type || node.type !== 'hidden'))
          results.push(node);
      return results;
    },

    'disabled': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (node.disabled) results.push(node);
      return results;
    },

    'checked': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (node.checked) results.push(node);
      return results;
    }
  },

  operators: {
    '=':  function(nv, v) { return nv == v; },
    '!=': function(nv, v) { return nv != v; },
    '^=': function(nv, v) { return nv == v || nv && nv.startsWith(v); },
    '$=': function(nv, v) { return nv == v || nv && nv.endsWith(v); },
    '*=': function(nv, v) { return nv == v || nv && nv.include(v); },
    '$=': function(nv, v) { return nv.endsWith(v); },
    '*=': function(nv, v) { return nv.include(v); },
    '~=': function(nv, v) { return (' ' + nv + ' ').include(' ' + v + ' '); },
    '|=': function(nv, v) { return ('-' + (nv || "").toUpperCase() +
     '-').include('-' + (v || "").toUpperCase() + '-'); }
  },

  split: function(expression) {
    var expressions = [];
    expression.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/, function(m) {
      expressions.push(m[1].strip());
    });
    return expressions;
  },

  matchElements: function(elements, expression) {
    var matches = $$(expression), h = Selector.handlers;
    h.mark(matches);
    for (var i = 0, results = [], element; element = elements[i]; i++)
      if (element._countedByPrototype) results.push(element);
    h.unmark(matches);
    return results;
  },

  findElement: function(elements, expression, index) {
    if (Object.isNumber(expression)) {
      index = expression; expression = false;
    }
    return Selector.matchElements(elements, expression || '*')[index || 0];
  },

  findChildElements: function(element, expressions) {
    expressions = Selector.split(expressions.join(','));
    var results = [], h = Selector.handlers;
    for (var i = 0, l = expressions.length, selector; i < l; i++) {
      selector = new Selector(expressions[i].strip());
      h.concat(results, selector.findElements(element));
    }
    return (l > 1) ? h.unique(results) : results;
  }
});

if (Prototype.Browser.IE) {
  Object.extend(Selector.handlers, {
    // IE returns comment nodes on getElementsByTagName("*").
    // Filter them out.
    concat: function(a, b) {
      for (var i = 0, node; node = b[i]; i++)
        if (node.tagName !== "!") a.push(node);
      return a;
    },

    // IE improperly serializes _countedByPrototype in (inner|outer)HTML.
    unmark: function(nodes) {
      for (var i = 0, node; node = nodes[i]; i++)
        node.removeAttribute('_countedByPrototype');
      return nodes;
    }
  });
}

function $$() {
  return Selector.findChildElements(document, $A(arguments));
}
var Form = {
  reset: function(form) {
    $(form).reset();
    return form;
  },

  serializeElements: function(elements, options) {
    if (typeof options != 'object') options = { hash: !!options };
    else if (Object.isUndefined(options.hash)) options.hash = true;
    var key, value, submitted = false, submit = options.submit;

    var data = elements.inject({ }, function(result, element) {
      if (!element.disabled && element.name) {
        key = element.name; value = $(element).getValue();
        if (value != null && element.type != 'file' && (element.type != 'submit' || (!submitted &&
            submit !== false && (!submit || key == submit) && (submitted = true)))) {
          if (key in result) {
            // a key is already present; construct an array of values
            if (!Object.isArray(result[key])) result[key] = [result[key]];
            result[key].push(value);
          }
          else result[key] = value;
        }
      }
      return result;
    });

    return options.hash ? data : Object.toQueryString(data);
  }
};

Form.Methods = {
  serialize: function(form, options) {
    return Form.serializeElements(Form.getElements(form), options);
  },

  getElements: function(form) {
    return $A($(form).getElementsByTagName('*')).inject([],
      function(elements, child) {
        if (Form.Element.Serializers[child.tagName.toLowerCase()])
          elements.push(Element.extend(child));
        return elements;
      }
    );
  },

  getInputs: function(form, typeName, name) {
    form = $(form);
    var inputs = form.getElementsByTagName('input');

    if (!typeName && !name) return $A(inputs).map(Element.extend);

    for (var i = 0, matchingInputs = [], length = inputs.length; i < length; i++) {
      var input = inputs[i];
      if ((typeName && input.type != typeName) || (name && input.name != name))
        continue;
      matchingInputs.push(Element.extend(input));
    }

    return matchingInputs;
  },

  disable: function(form) {
    form = $(form);
    Form.getElements(form).invoke('disable');
    return form;
  },

  enable: function(form) {
    form = $(form);
    Form.getElements(form).invoke('enable');
    return form;
  },

  findFirstElement: function(form) {
    var elements = $(form).getElements().findAll(function(element) {
      return 'hidden' != element.type && !element.disabled;
    });
    var firstByIndex = elements.findAll(function(element) {
      return element.hasAttribute('tabIndex') && element.tabIndex >= 0;
    }).sortBy(function(element) { return element.tabIndex }).first();

    return firstByIndex ? firstByIndex : elements.find(function(element) {
      return ['input', 'select', 'textarea'].include(element.tagName.toLowerCase());
    });
  },

  focusFirstElement: function(form) {
    form = $(form);
    form.findFirstElement().activate();
    return form;
  },

  request: function(form, options) {
    form = $(form), options = Object.clone(options || { });

    var params = options.parameters, action = form.readAttribute('action') || '';
    if (action.blank()) action = window.location.href;
    options.parameters = form.serialize(true);

    if (params) {
      if (Object.isString(params)) params = params.toQueryParams();
      Object.extend(options.parameters, params);
    }

    if (form.hasAttribute('method') && !options.method)
      options.method = form.method;

    return new Ajax.Request(action, options);
  }
};

/*--------------------------------------------------------------------------*/

Form.Element = {
  focus: function(element) {
    $(element).focus();
    return element;
  },

  select: function(element) {
    $(element).select();
    return element;
  }
};

Form.Element.Methods = {
  serialize: function(element) {
    element = $(element);
    if (!element.disabled && element.name) {
      var value = element.getValue();
      if (value != undefined) {
        var pair = { };
        pair[element.name] = value;
        return Object.toQueryString(pair);
      }
    }
    return '';
  },

  getValue: function(element) {
    element = $(element);
    var method = element.tagName.toLowerCase();
    return Form.Element.Serializers[method](element);
  },

  setValue: function(element, value) {
    element = $(element);
    var method = element.tagName.toLowerCase();
    Form.Element.Serializers[method](element, value);
    return element;
  },

  clear: function(element) {
    $(element).value = '';
    return element;
  },

  present: function(element) {
    return $(element).value != '';
  },

  activate: function(element) {
    element = $(element);
    try {
      element.focus();
      if (element.select && (element.tagName.toLowerCase() != 'input' ||
          !['button', 'reset', 'submit'].include(element.type)))
        element.select();
    } catch (e) { }
    return element;
  },

  disable: function(element) {
    element = $(element);
    element.disabled = true;
    return element;
  },

  enable: function(element) {
    element = $(element);
    element.disabled = false;
    return element;
  }
};

/*--------------------------------------------------------------------------*/

var Field = Form.Element;
var $F = Form.Element.Methods.getValue;

/*--------------------------------------------------------------------------*/

Form.Element.Serializers = {
  input: function(element, value) {
    switch (element.type.toLowerCase()) {
      case 'checkbox':
      case 'radio':
        return Form.Element.Serializers.inputSelector(element, value);
      default:
        return Form.Element.Serializers.textarea(element, value);
    }
  },

  inputSelector: function(element, value) {
    if (Object.isUndefined(value)) return element.checked ? element.value : null;
    else element.checked = !!value;
  },

  textarea: function(element, value) {
    if (Object.isUndefined(value)) return element.value;
    else element.value = value;
  },

  select: function(element, value) {
    if (Object.isUndefined(value))
      return this[element.type == 'select-one' ?
        'selectOne' : 'selectMany'](element);
    else {
      var opt, currentValue, single = !Object.isArray(value);
      for (var i = 0, length = element.length; i < length; i++) {
        opt = element.options[i];
        currentValue = this.optionValue(opt);
        if (single) {
          if (currentValue == value) {
            opt.selected = true;
            return;
          }
        }
        else opt.selected = value.include(currentValue);
      }
    }
  },

  selectOne: function(element) {
    var index = element.selectedIndex;
    return index >= 0 ? this.optionValue(element.options[index]) : null;
  },

  selectMany: function(element) {
    var values, length = element.length;
    if (!length) return null;

    for (var i = 0, values = []; i < length; i++) {
      var opt = element.options[i];
      if (opt.selected) values.push(this.optionValue(opt));
    }
    return values;
  },

  optionValue: function(opt) {
    // extend element because hasAttribute may not be native
    return Element.extend(opt).hasAttribute('value') ? opt.value : opt.text;
  }
};

/*--------------------------------------------------------------------------*/

Abstract.TimedObserver = Class.create(PeriodicalExecuter, {
  initialize: function($super, element, frequency, callback) {
    $super(callback, frequency);
    this.element   = $(element);
    this.lastValue = this.getValue();
  },

  execute: function() {
    var value = this.getValue();
    if (Object.isString(this.lastValue) && Object.isString(value) ?
        this.lastValue != value : String(this.lastValue) != String(value)) {
      this.callback(this.element, value);
      this.lastValue = value;
    }
  }
});

Form.Element.Observer = Class.create(Abstract.TimedObserver, {
  getValue: function() {
    return Form.Element.getValue(this.element);
  }
});

Form.Observer = Class.create(Abstract.TimedObserver, {
  getValue: function() {
    return Form.serialize(this.element);
  }
});

/*--------------------------------------------------------------------------*/

Abstract.EventObserver = Class.create({
  initialize: function(element, callback) {
    this.element  = $(element);
    this.callback = callback;

    this.lastValue = this.getValue();
    if (this.element.tagName.toLowerCase() == 'form')
      this.registerFormCallbacks();
    else
      this.registerCallback(this.element);
  },

  onElementEvent: function() {
    var value = this.getValue();
    if (this.lastValue != value) {
      this.callback(this.element, value);
      this.lastValue = value;
    }
  },

  registerFormCallbacks: function() {
    Form.getElements(this.element).each(this.registerCallback, this);
  },

  registerCallback: function(element) {
    if (element.type) {
      switch (element.type.toLowerCase()) {
        case 'checkbox':
        case 'radio':
          Event.observe(element, 'click', this.onElementEvent.bind(this));
          break;
        default:
          Event.observe(element, 'change', this.onElementEvent.bind(this));
          break;
      }
    }
  }
});

Form.Element.EventObserver = Class.create(Abstract.EventObserver, {
  getValue: function() {
    return Form.Element.getValue(this.element);
  }
});

Form.EventObserver = Class.create(Abstract.EventObserver, {
  getValue: function() {
    return Form.serialize(this.element);
  }
});
if (!window.Event) var Event = { };

Object.extend(Event, {
  KEY_BACKSPACE: 8,
  KEY_TAB:       9,
  KEY_RETURN:   13,
  KEY_ESC:      27,
  KEY_LEFT:     37,
  KEY_UP:       38,
  KEY_RIGHT:    39,
  KEY_DOWN:     40,
  KEY_DELETE:   46,
  KEY_HOME:     36,
  KEY_END:      35,
  KEY_PAGEUP:   33,
  KEY_PAGEDOWN: 34,
  KEY_INSERT:   45,

  cache: { },

  relatedTarget: function(event) {
    var element;
    switch(event.type) {
      case 'mouseover': element = event.fromElement; break;
      case 'mouseout':  element = event.toElement;   break;
      default: return null;
    }
    return Element.extend(element);
  }
});

Event.Methods = (function() {
  var isButton;

  if (Prototype.Browser.IE) {
    var buttonMap = { 0: 1, 1: 4, 2: 2 };
    isButton = function(event, code) {
      return event.button == buttonMap[code];
    };

  } else if (Prototype.Browser.WebKit) {
    isButton = function(event, code) {
      switch (code) {
        case 0: return event.which == 1 && !event.metaKey;
        case 1: return event.which == 1 && event.metaKey;
        default: return false;
      }
    };

  } else {
    isButton = function(event, code) {
      return event.which ? (event.which === code + 1) : (event.button === code);
    };
  }

  return {
    isLeftClick:   function(event) { return isButton(event, 0) },
    isMiddleClick: function(event) { return isButton(event, 1) },
    isRightClick:  function(event) { return isButton(event, 2) },

    element: function(event) {
      event = Event.extend(event);

      var node          = event.target,
          type          = event.type,
          currentTarget = event.currentTarget;

      if (currentTarget && currentTarget.tagName) {
        // Firefox screws up the "click" event when moving between radio buttons
        // via arrow keys. It also screws up the "load" and "error" events on images,
        // reporting the document as the target instead of the original image.
        if (type === 'load' || type === 'error' ||
          (type === 'click' && currentTarget.tagName.toLowerCase() === 'input'
            && currentTarget.type === 'radio'))
              node = currentTarget;
      }
      if (node.nodeType == Node.TEXT_NODE) node = node.parentNode;
      return Element.extend(node);
    },

    findElement: function(event, expression) {
      var element = Event.element(event);
      if (!expression) return element;
      var elements = [element].concat(element.ancestors());
      return Selector.findElement(elements, expression, 0);
    },

    pointer: function(event) {
      var docElement = document.documentElement,
      body = document.body || { scrollLeft: 0, scrollTop: 0 };
      return {
        x: event.pageX || (event.clientX +
          (docElement.scrollLeft || body.scrollLeft) -
          (docElement.clientLeft || 0)),
        y: event.pageY || (event.clientY +
          (docElement.scrollTop || body.scrollTop) -
          (docElement.clientTop || 0))
      };
    },

    pointerX: function(event) { return Event.pointer(event).x },
    pointerY: function(event) { return Event.pointer(event).y },

    stop: function(event) {
      Event.extend(event);
      event.preventDefault();
      event.stopPropagation();
      event.stopped = true;
    }
  };
})();

Event.extend = (function() {
  var methods = Object.keys(Event.Methods).inject({ }, function(m, name) {
    m[name] = Event.Methods[name].methodize();
    return m;
  });

  if (Prototype.Browser.IE) {
    Object.extend(methods, {
      stopPropagation: function() { this.cancelBubble = true },
      preventDefault:  function() { this.returnValue = false },
      inspect: function() { return "[object Event]" }
    });

    return function(event) {
      if (!event) return false;
      if (event._extendedByPrototype) return event;

      event._extendedByPrototype = Prototype.emptyFunction;
      var pointer = Event.pointer(event);
      Object.extend(event, {
        target: event.srcElement,
        relatedTarget: Event.relatedTarget(event),
        pageX:  pointer.x,
        pageY:  pointer.y
      });
      return Object.extend(event, methods);
    };

  } else {
    Event.prototype = Event.prototype || document.createEvent("HTMLEvents")['__proto__'];
    Object.extend(Event.prototype, methods);
    return Prototype.K;
  }
})();

Object.extend(Event, (function() {
  var cache = Event.cache;

  function getEventID(element) {
    if (element._prototypeEventID) return element._prototypeEventID[0];
    arguments.callee.id = arguments.callee.id || 1;
    return element._prototypeEventID = [++arguments.callee.id];
  }

  function getDOMEventName(eventName) {
    if (eventName && eventName.include(':')) return "dataavailable";
    return eventName;
  }

  function getCacheForID(id) {
    return cache[id] = cache[id] || { };
  }

  function getWrappersForEventName(id, eventName) {
    var c = getCacheForID(id);
    return c[eventName] = c[eventName] || [];
  }

  function createWrapper(element, eventName, handler) {
    var id = getEventID(element);
    var c = getWrappersForEventName(id, eventName);
    if (c.pluck("handler").include(handler)) return false;

    var wrapper = function(event) {
      if (!Event || !Event.extend ||
        (event.eventName && event.eventName != eventName))
          return false;

      Event.extend(event);
      handler.call(element, event);
    };

    wrapper.handler = handler;
    c.push(wrapper);
    return wrapper;
  }

  function findWrapper(id, eventName, handler) {
    var c = getWrappersForEventName(id, eventName);
    return c.find(function(wrapper) { return wrapper.handler == handler });
  }

  function destroyWrapper(id, eventName, handler) {
    var c = getCacheForID(id);
    if (!c[eventName]) return false;
    c[eventName] = c[eventName].without(findWrapper(id, eventName, handler));
  }

  function destroyCache() {
    for (var id in cache)
      for (var eventName in cache[id])
        cache[id][eventName] = null;
  }


  // Internet Explorer needs to remove event handlers on page unload
  // in order to avoid memory leaks.
  if (window.attachEvent) {
    window.attachEvent("onunload", destroyCache);
  }

  // Safari has a dummy event handler on page unload so that it won't
  // use its bfcache. Safari <= 3.1 has an issue with restoring the "document"
  // object when page is returned to via the back button using its bfcache.
  if (Prototype.Browser.WebKit) {
    window.addEventListener('unload', Prototype.emptyFunction, false);
  }

  return {
    observe: function(element, eventName, handler) {
      element = $(element);
      var name = getDOMEventName(eventName);

      var wrapper = createWrapper(element, eventName, handler);
      if (!wrapper) return element;

      if (element.addEventListener) {
        element.addEventListener(name, wrapper, false);
      } else {
        element.attachEvent("on" + name, wrapper);
      }

      return element;
    },

    stopObserving: function(element, eventName, handler) {
      element = $(element);
      var id = getEventID(element), name = getDOMEventName(eventName);

      if (!handler && eventName) {
        getWrappersForEventName(id, eventName).each(function(wrapper) {
          element.stopObserving(eventName, wrapper.handler);
        });
        return element;

      } else if (!eventName) {
        Object.keys(getCacheForID(id)).each(function(eventName) {
          element.stopObserving(eventName);
        });
        return element;
      }

      var wrapper = findWrapper(id, eventName, handler);
      if (!wrapper) return element;

      if (element.removeEventListener) {
        element.removeEventListener(name, wrapper, false);
      } else {
        element.detachEvent("on" + name, wrapper);
      }

      destroyWrapper(id, eventName, handler);

      return element;
    },

    fire: function(element, eventName, memo) {
      element = $(element);
      if (element == document && document.createEvent && !element.dispatchEvent)
        element = document.documentElement;

      var event;
      if (document.createEvent) {
        event = document.createEvent("HTMLEvents");
        event.initEvent("dataavailable", true, true);
      } else {
        event = document.createEventObject();
        event.eventType = "ondataavailable";
      }

      event.eventName = eventName;
      event.memo = memo || { };

      if (document.createEvent) {
        element.dispatchEvent(event);
      } else {
        element.fireEvent(event.eventType, event);
      }

      return Event.extend(event);
    }
  };
})());

Object.extend(Event, Event.Methods);

Element.addMethods({
  fire:          Event.fire,
  observe:       Event.observe,
  stopObserving: Event.stopObserving
});

Object.extend(document, {
  fire:          Element.Methods.fire.methodize(),
  observe:       Element.Methods.observe.methodize(),
  stopObserving: Element.Methods.stopObserving.methodize(),
  loaded:        false
});

(function() {
  /* Support for the DOMContentLoaded event is based on work by Dan Webb,
     Matthias Miller, Dean Edwards and John Resig. */

  var timer;

  function fireContentLoadedEvent() {
    if (document.loaded) return;
    if (timer) window.clearInterval(timer);
    document.fire("dom:loaded");
    document.loaded = true;
  }

  if (document.addEventListener) {
    if (Prototype.Browser.WebKit) {
      timer = window.setInterval(function() {
        if (/loaded|complete/.test(document.readyState))
          fireContentLoadedEvent();
      }, 0);

      Event.observe(window, "load", fireContentLoadedEvent);

    } else {
      document.addEventListener("DOMContentLoaded",
        fireContentLoadedEvent, false);
    }

  } else {
    document.write("<script id=__onDOMContentLoaded defer src=//:><\/script>");
    $("__onDOMContentLoaded").onreadystatechange = function() {
      if (this.readyState == "complete") {
        this.onreadystatechange = null;
        fireContentLoadedEvent();
      }
    };
  }
})();
/*------------------------------- DEPRECATED -------------------------------*/

Hash.toQueryString = Object.toQueryString;

var Toggle = { display: Element.toggle };

Element.Methods.childOf = Element.Methods.descendantOf;

var Insertion = {
  Before: function(element, content) {
    return Element.insert(element, {before:content});
  },

  Top: function(element, content) {
    return Element.insert(element, {top:content});
  },

  Bottom: function(element, content) {
    return Element.insert(element, {bottom:content});
  },

  After: function(element, content) {
    return Element.insert(element, {after:content});
  }
};

var $continue = new Error('"throw $continue" is deprecated, use "return" instead');

// This should be moved to script.aculo.us; notice the deprecated methods
// further below, that map to the newer Element methods.
var Position = {
  // set to true if needed, warning: firefox performance problems
  // NOT neeeded for page scrolling, only if draggable contained in
  // scrollable elements
  includeScrollOffsets: false,

  // must be called before calling withinIncludingScrolloffset, every time the
  // page is scrolled
  prepare: function() {
    this.deltaX =  window.pageXOffset
                || document.documentElement.scrollLeft
                || document.body.scrollLeft
                || 0;
    this.deltaY =  window.pageYOffset
                || document.documentElement.scrollTop
                || document.body.scrollTop
                || 0;
  },

  // caches x/y coordinate pair to use with overlap
  within: function(element, x, y) {
    if (this.includeScrollOffsets)
      return this.withinIncludingScrolloffsets(element, x, y);
    this.xcomp = x;
    this.ycomp = y;
    this.offset = Element.cumulativeOffset(element);

    return (y >= this.offset[1] &&
            y <  this.offset[1] + element.offsetHeight &&
            x >= this.offset[0] &&
            x <  this.offset[0] + element.offsetWidth);
  },

  withinIncludingScrolloffsets: function(element, x, y) {
    var offsetcache = Element.cumulativeScrollOffset(element);

    this.xcomp = x + offsetcache[0] - this.deltaX;
    this.ycomp = y + offsetcache[1] - this.deltaY;
    this.offset = Element.cumulativeOffset(element);

    return (this.ycomp >= this.offset[1] &&
            this.ycomp <  this.offset[1] + element.offsetHeight &&
            this.xcomp >= this.offset[0] &&
            this.xcomp <  this.offset[0] + element.offsetWidth);
  },

  // within must be called directly before
  overlap: function(mode, element) {
    if (!mode) return 0;
    if (mode == 'vertical')
      return ((this.offset[1] + element.offsetHeight) - this.ycomp) /
        element.offsetHeight;
    if (mode == 'horizontal')
      return ((this.offset[0] + element.offsetWidth) - this.xcomp) /
        element.offsetWidth;
  },

  // Deprecation layer -- use newer Element methods now (1.5.2).

  cumulativeOffset: Element.Methods.cumulativeOffset,

  positionedOffset: Element.Methods.positionedOffset,

  absolutize: function(element) {
    Position.prepare();
    return Element.absolutize(element);
  },

  relativize: function(element) {
    Position.prepare();
    return Element.relativize(element);
  },

  realOffset: Element.Methods.cumulativeScrollOffset,

  offsetParent: Element.Methods.getOffsetParent,

  page: Element.Methods.viewportOffset,

  clone: function(source, target, options) {
    options = options || { };
    return Element.clonePosition(target, source, options);
  }
};

/*--------------------------------------------------------------------------*/

if (!document.getElementsByClassName) document.getElementsByClassName = function(instanceMethods){
  function iter(name) {
    return name.blank() ? null : "[contains(concat(' ', @class, ' '), ' " + name + " ')]";
  }

  instanceMethods.getElementsByClassName = Prototype.BrowserFeatures.XPath ?
  function(element, className) {
    className = className.toString().strip();
    var cond = /\s/.test(className) ? $w(className).map(iter).join('') : iter(className);
    return cond ? document._getElementsByXPath('.//*' + cond, element) : [];
  } : function(element, className) {
    className = className.toString().strip();
    var elements = [], classNames = (/\s/.test(className) ? $w(className) : null);
    if (!classNames && !className) return elements;

    var nodes = $(element).getElementsByTagName('*');
    className = ' ' + className + ' ';

    for (var i = 0, child, cn; child = nodes[i]; i++) {
      if (child.className && (cn = ' ' + child.className + ' ') && (cn.include(className) ||
          (classNames && classNames.all(function(name) {
            return !name.toString().blank() && cn.include(' ' + name + ' ');
          }))))
        elements.push(Element.extend(child));
    }
    return elements;
  };

  return function(className, parentElement) {
    return $(parentElement || document.body).getElementsByClassName(className);
  };
}(Element.Methods);

/*--------------------------------------------------------------------------*/

Element.ClassNames = Class.create();
Element.ClassNames.prototype = {
  initialize: function(element) {
    this.element = $(element);
  },

  _each: function(iterator) {
    this.element.className.split(/\s+/).select(function(name) {
      return name.length > 0;
    })._each(iterator);
  },

  set: function(className) {
    this.element.className = className;
  },

  add: function(classNameToAdd) {
    if (this.include(classNameToAdd)) return;
    this.set($A(this).concat(classNameToAdd).join(' '));
  },

  remove: function(classNameToRemove) {
    if (!this.include(classNameToRemove)) return;
    this.set($A(this).without(classNameToRemove).join(' '));
  },

  toString: function() {
    return $A(this).join(' ');
  }
};

Object.extend(Element.ClassNames.prototype, Enumerable);

/*--------------------------------------------------------------------------*/

Element.addMethods();
// script.aculo.us scriptaculous.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

// Copyright (c) 2005-2008 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// For details, see the script.aculo.us web site: http://script.aculo.us/

var Scriptaculous = {
  Version: '1.8.2',
  require: function(libraryName) {
    // inserting via DOM fails in Safari 2.0, so brute force approach
    document.write('<script type="text/javascript" src="'+libraryName+'"><\/script>');
  },
  REQUIRED_PROTOTYPE: '1.6.0.3',
  load: function() {
    function convertVersionString(versionString) {
      var v = versionString.replace(/_.*|\./g, '');
      v = parseInt(v + '0'.times(4-v.length));
      return versionString.indexOf('_') > -1 ? v-1 : v;
    }

    if((typeof Prototype=='undefined') ||
       (typeof Element == 'undefined') ||
       (typeof Element.Methods=='undefined') ||
       (convertVersionString(Prototype.Version) <
        convertVersionString(Scriptaculous.REQUIRED_PROTOTYPE)))
       throw("script.aculo.us requires the Prototype JavaScript framework >= " +
        Scriptaculous.REQUIRED_PROTOTYPE);

    var js = /scriptaculous\.js(\?.*)?$/;
    $$('head script[src]').findAll(function(s) {
      return s.src.match(js);
    }).each(function(s) {
      var path = s.src.replace(js, ''),
      includes = s.src.match(/\?.*load=([a-z,]*)/);
      (includes ? includes[1] : 'builder,effects,dragdrop,controls,slider,sound').split(',').each(
       function(include) { Scriptaculous.require(path+include+'.js') });
    });
  }
};

Scriptaculous.load();
// script.aculo.us builder.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

// Copyright (c) 2005-2008 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

var Builder = {
  NODEMAP: {
    AREA: 'map',
    CAPTION: 'table',
    COL: 'table',
    COLGROUP: 'table',
    LEGEND: 'fieldset',
    OPTGROUP: 'select',
    OPTION: 'select',
    PARAM: 'object',
    TBODY: 'table',
    TD: 'table',
    TFOOT: 'table',
    TH: 'table',
    THEAD: 'table',
    TR: 'table'
  },
  // note: For Firefox < 1.5, OPTION and OPTGROUP tags are currently broken,
  //       due to a Firefox bug
  node: function(elementName) {
    elementName = elementName.toUpperCase();

    // try innerHTML approach
    var parentTag = this.NODEMAP[elementName] || 'div';
    var parentElement = document.createElement(parentTag);
    try { // prevent IE "feature": http://dev.rubyonrails.org/ticket/2707
      parentElement.innerHTML = "<" + elementName + "></" + elementName + ">";
    } catch(e) {}
    var element = parentElement.firstChild || null;

    // see if browser added wrapping tags
    if(element && (element.tagName.toUpperCase() != elementName))
      element = element.getElementsByTagName(elementName)[0];

    // fallback to createElement approach
    if(!element) element = document.createElement(elementName);

    // abort if nothing could be created
    if(!element) return;

    // attributes (or text)
    if(arguments[1])
      if(this._isStringOrNumber(arguments[1]) ||
        (arguments[1] instanceof Array) ||
        arguments[1].tagName) {
          this._children(element, arguments[1]);
        } else {
          var attrs = this._attributes(arguments[1]);
          if(attrs.length) {
            try { // prevent IE "feature": http://dev.rubyonrails.org/ticket/2707
              parentElement.innerHTML = "<" +elementName + " " +
                attrs + "></" + elementName + ">";
            } catch(e) {}
            element = parentElement.firstChild || null;
            // workaround firefox 1.0.X bug
            if(!element) {
              element = document.createElement(elementName);
              for(attr in arguments[1])
                element[attr == 'class' ? 'className' : attr] = arguments[1][attr];
            }
            if(element.tagName.toUpperCase() != elementName)
              element = parentElement.getElementsByTagName(elementName)[0];
          }
        }

    // text, or array of children
    if(arguments[2])
      this._children(element, arguments[2]);

     return $(element);
  },
  _text: function(text) {
     return document.createTextNode(text);
  },

  ATTR_MAP: {
    'className': 'class',
    'htmlFor': 'for'
  },

  _attributes: function(attributes) {
    var attrs = [];
    for(attribute in attributes)
      attrs.push((attribute in this.ATTR_MAP ? this.ATTR_MAP[attribute] : attribute) +
          '="' + attributes[attribute].toString().escapeHTML().gsub(/"/,'&quot;') + '"');
    return attrs.join(" ");
  },
  _children: function(element, children) {
    if(children.tagName) {
      element.appendChild(children);
      return;
    }
    if(typeof children=='object') { // array can hold nodes and text
      children.flatten().each( function(e) {
        if(typeof e=='object')
          element.appendChild(e);
        else
          if(Builder._isStringOrNumber(e))
            element.appendChild(Builder._text(e));
      });
    } else
      if(Builder._isStringOrNumber(children))
        element.appendChild(Builder._text(children));
  },
  _isStringOrNumber: function(param) {
    return(typeof param=='string' || typeof param=='number');
  },
  build: function(html) {
    var element = this.node('div');
    $(element).update(html.strip());
    return element.down();
  },
  dump: function(scope) {
    if(typeof scope != 'object' && typeof scope != 'function') scope = window; //global scope

    var tags = ("A ABBR ACRONYM ADDRESS APPLET AREA B BASE BASEFONT BDO BIG BLOCKQUOTE BODY " +
      "BR BUTTON CAPTION CENTER CITE CODE COL COLGROUP DD DEL DFN DIR DIV DL DT EM FIELDSET " +
      "FONT FORM FRAME FRAMESET H1 H2 H3 H4 H5 H6 HEAD HR HTML I IFRAME IMG INPUT INS ISINDEX "+
      "KBD LABEL LEGEND LI LINK MAP MENU META NOFRAMES NOSCRIPT OBJECT OL OPTGROUP OPTION P "+
      "PARAM PRE Q S SAMP SCRIPT SELECT SMALL SPAN STRIKE STRONG STYLE SUB SUP TABLE TBODY TD "+
      "TEXTAREA TFOOT TH THEAD TITLE TR TT U UL VAR").split(/\s+/);

    tags.each( function(tag){
      scope[tag] = function() {
        return Builder.node.apply(Builder, [tag].concat($A(arguments)));
      };
    });
  }
};
// script.aculo.us effects.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

// Copyright (c) 2005-2008 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
// Contributors:
//  Justin Palmer (http://encytemedia.com/)
//  Mark Pilgrim (http://diveintomark.org/)
//  Martin Bialasinki
//
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

// converts rgb() and #xxx to #xxxxxx format,
// returns self (or first argument) if not convertable
String.prototype.parseColor = function() {
  var color = '#';
  if (this.slice(0,4) == 'rgb(') {
    var cols = this.slice(4,this.length-1).split(',');
    var i=0; do { color += parseInt(cols[i]).toColorPart() } while (++i<3);
  } else {
    if (this.slice(0,1) == '#') {
      if (this.length==4) for(var i=1;i<4;i++) color += (this.charAt(i) + this.charAt(i)).toLowerCase();
      if (this.length==7) color = this.toLowerCase();
    }
  }
  return (color.length==7 ? color : (arguments[0] || this));
};

/*--------------------------------------------------------------------------*/

Element.collectTextNodes = function(element) {
  return $A($(element).childNodes).collect( function(node) {
    return (node.nodeType==3 ? node.nodeValue :
      (node.hasChildNodes() ? Element.collectTextNodes(node) : ''));
  }).flatten().join('');
};

Element.collectTextNodesIgnoreClass = function(element, className) {
  return $A($(element).childNodes).collect( function(node) {
    return (node.nodeType==3 ? node.nodeValue :
      ((node.hasChildNodes() && !Element.hasClassName(node,className)) ?
        Element.collectTextNodesIgnoreClass(node, className) : ''));
  }).flatten().join('');
};

Element.setContentZoom = function(element, percent) {
  element = $(element);
  element.setStyle({fontSize: (percent/100) + 'em'});
  if (Prototype.Browser.WebKit) window.scrollBy(0,0);
  return element;
};

Element.getInlineOpacity = function(element){
  return $(element).style.opacity || '';
};

Element.forceRerendering = function(element) {
  try {
    element = $(element);
    var n = document.createTextNode(' ');
    element.appendChild(n);
    element.removeChild(n);
  } catch(e) { }
};

/*--------------------------------------------------------------------------*/

var Effect = {
  _elementDoesNotExistError: {
    name: 'ElementDoesNotExistError',
    message: 'The specified DOM element does not exist, but is required for this effect to operate'
  },
  Transitions: {
    linear: Prototype.K,
    sinoidal: function(pos) {
      return (-Math.cos(pos*Math.PI)/2) + .5;
    },
    reverse: function(pos) {
      return 1-pos;
    },
    flicker: function(pos) {
      var pos = ((-Math.cos(pos*Math.PI)/4) + .75) + Math.random()/4;
      return pos > 1 ? 1 : pos;
    },
    wobble: function(pos) {
      return (-Math.cos(pos*Math.PI*(9*pos))/2) + .5;
    },
    pulse: function(pos, pulses) {
      return (-Math.cos((pos*((pulses||5)-.5)*2)*Math.PI)/2) + .5;
    },
    spring: function(pos) {
      return 1 - (Math.cos(pos * 4.5 * Math.PI) * Math.exp(-pos * 6));
    },
    none: function(pos) {
      return 0;
    },
    full: function(pos) {
      return 1;
    }
  },
  DefaultOptions: {
    duration:   1.0,   // seconds
    fps:        100,   // 100= assume 66fps max.
    sync:       false, // true for combining
    from:       0.0,
    to:         1.0,
    delay:      0.0,
    queue:      'parallel'
  },
  tagifyText: function(element) {
    var tagifyStyle = 'position:relative';
    if (Prototype.Browser.IE) tagifyStyle += ';zoom:1';

    element = $(element);
    $A(element.childNodes).each( function(child) {
      if (child.nodeType==3) {
        child.nodeValue.toArray().each( function(character) {
          element.insertBefore(
            new Element('span', {style: tagifyStyle}).update(
              character == ' ' ? String.fromCharCode(160) : character),
              child);
        });
        Element.remove(child);
      }
    });
  },
  multiple: function(element, effect) {
    var elements;
    if (((typeof element == 'object') ||
        Object.isFunction(element)) &&
       (element.length))
      elements = element;
    else
      elements = $(element).childNodes;

    var options = Object.extend({
      speed: 0.1,
      delay: 0.0
    }, arguments[2] || { });
    var masterDelay = options.delay;

    $A(elements).each( function(element, index) {
      new effect(element, Object.extend(options, { delay: index * options.speed + masterDelay }));
    });
  },
  PAIRS: {
    'slide':  ['SlideDown','SlideUp'],
    'blind':  ['BlindDown','BlindUp'],
    'appear': ['Appear','Fade']
  },
  toggle: function(element, effect) {
    element = $(element);
    effect = (effect || 'appear').toLowerCase();
    var options = Object.extend({
      queue: { position:'end', scope:(element.id || 'global'), limit: 1 }
    }, arguments[2] || { });
    Effect[element.visible() ?
      Effect.PAIRS[effect][1] : Effect.PAIRS[effect][0]](element, options);
  }
};

Effect.DefaultOptions.transition = Effect.Transitions.sinoidal;

/* ------------- core effects ------------- */

Effect.ScopedQueue = Class.create(Enumerable, {
  initialize: function() {
    this.effects  = [];
    this.interval = null;
  },
  _each: function(iterator) {
    this.effects._each(iterator);
  },
  add: function(effect) {
    var timestamp = new Date().getTime();

    var position = Object.isString(effect.options.queue) ?
      effect.options.queue : effect.options.queue.position;

    switch(position) {
      case 'front':
        // move unstarted effects after this effect
        this.effects.findAll(function(e){ return e.state=='idle' }).each( function(e) {
            e.startOn  += effect.finishOn;
            e.finishOn += effect.finishOn;
          });
        break;
      case 'with-last':
        timestamp = this.effects.pluck('startOn').max() || timestamp;
        break;
      case 'end':
        // start effect after last queued effect has finished
        timestamp = this.effects.pluck('finishOn').max() || timestamp;
        break;
    }

    effect.startOn  += timestamp;
    effect.finishOn += timestamp;

    if (!effect.options.queue.limit || (this.effects.length < effect.options.queue.limit))
      this.effects.push(effect);

    if (!this.interval)
      this.interval = setInterval(this.loop.bind(this), 15);
  },
  remove: function(effect) {
    this.effects = this.effects.reject(function(e) { return e==effect });
    if (this.effects.length == 0) {
      clearInterval(this.interval);
      this.interval = null;
    }
  },
  loop: function() {
    var timePos = new Date().getTime();
    for(var i=0, len=this.effects.length;i<len;i++)
      this.effects[i] && this.effects[i].loop(timePos);
  }
});

Effect.Queues = {
  instances: $H(),
  get: function(queueName) {
    if (!Object.isString(queueName)) return queueName;

    return this.instances.get(queueName) ||
      this.instances.set(queueName, new Effect.ScopedQueue());
  }
};
Effect.Queue = Effect.Queues.get('global');

Effect.Base = Class.create({
  position: null,
  start: function(options) {
    function codeForEvent(options,eventName){
      return (
        (options[eventName+'Internal'] ? 'this.options.'+eventName+'Internal(this);' : '') +
        (options[eventName] ? 'this.options.'+eventName+'(this);' : '')
      );
    }
    if (options && options.transition === false) options.transition = Effect.Transitions.linear;
    this.options      = Object.extend(Object.extend({ },Effect.DefaultOptions), options || { });
    this.currentFrame = 0;
    this.state        = 'idle';
    this.startOn      = this.options.delay*1000;
    this.finishOn     = this.startOn+(this.options.duration*1000);
    this.fromToDelta  = this.options.to-this.options.from;
    this.totalTime    = this.finishOn-this.startOn;
    this.totalFrames  = this.options.fps*this.options.duration;

    this.render = (function() {
      function dispatch(effect, eventName) {
        if (effect.options[eventName + 'Internal'])
          effect.options[eventName + 'Internal'](effect);
        if (effect.options[eventName])
          effect.options[eventName](effect);
      }

      return function(pos) {
        if (this.state === "idle") {
          this.state = "running";
          dispatch(this, 'beforeSetup');
          if (this.setup) this.setup();
          dispatch(this, 'afterSetup');
        }
        if (this.state === "running") {
          pos = (this.options.transition(pos) * this.fromToDelta) + this.options.from;
          this.position = pos;
          dispatch(this, 'beforeUpdate');
          if (this.update) this.update(pos);
          dispatch(this, 'afterUpdate');
        }
      };
    })();

    this.event('beforeStart');
    if (!this.options.sync)
      Effect.Queues.get(Object.isString(this.options.queue) ?
        'global' : this.options.queue.scope).add(this);
  },
  loop: function(timePos) {
    if (timePos >= this.startOn) {
      if (timePos >= this.finishOn) {
        this.render(1.0);
        this.cancel();
        this.event('beforeFinish');
        if (this.finish) this.finish();
        this.event('afterFinish');
        return;
      }
      var pos   = (timePos - this.startOn) / this.totalTime,
          frame = (pos * this.totalFrames).round();
      if (frame > this.currentFrame) {
        this.render(pos);
        this.currentFrame = frame;
      }
    }
  },
  cancel: function() {
    if (!this.options.sync)
      Effect.Queues.get(Object.isString(this.options.queue) ?
        'global' : this.options.queue.scope).remove(this);
    this.state = 'finished';
  },
  event: function(eventName) {
    if (this.options[eventName + 'Internal']) this.options[eventName + 'Internal'](this);
    if (this.options[eventName]) this.options[eventName](this);
  },
  inspect: function() {
    var data = $H();
    for(property in this)
      if (!Object.isFunction(this[property])) data.set(property, this[property]);
    return '#<Effect:' + data.inspect() + ',options:' + $H(this.options).inspect() + '>';
  }
});

Effect.Parallel = Class.create(Effect.Base, {
  initialize: function(effects) {
    this.effects = effects || [];
    this.start(arguments[1]);
  },
  update: function(position) {
    this.effects.invoke('render', position);
  },
  finish: function(position) {
    this.effects.each( function(effect) {
      effect.render(1.0);
      effect.cancel();
      effect.event('beforeFinish');
      if (effect.finish) effect.finish(position);
      effect.event('afterFinish');
    });
  }
});

Effect.Tween = Class.create(Effect.Base, {
  initialize: function(object, from, to) {
    object = Object.isString(object) ? $(object) : object;
    var args = $A(arguments), method = args.last(),
      options = args.length == 5 ? args[3] : null;
    this.method = Object.isFunction(method) ? method.bind(object) :
      Object.isFunction(object[method]) ? object[method].bind(object) :
      function(value) { object[method] = value };
    this.start(Object.extend({ from: from, to: to }, options || { }));
  },
  update: function(position) {
    this.method(position);
  }
});

Effect.Event = Class.create(Effect.Base, {
  initialize: function() {
    this.start(Object.extend({ duration: 0 }, arguments[0] || { }));
  },
  update: Prototype.emptyFunction
});

Effect.Opacity = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    // make this work on IE on elements without 'layout'
    if (Prototype.Browser.IE && (!this.element.currentStyle.hasLayout))
      this.element.setStyle({zoom: 1});
    var options = Object.extend({
      from: this.element.getOpacity() || 0.0,
      to:   1.0
    }, arguments[1] || { });
    this.start(options);
  },
  update: function(position) {
    this.element.setOpacity(position);
  }
});

Effect.Move = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      x:    0,
      y:    0,
      mode: 'relative'
    }, arguments[1] || { });
    this.start(options);
  },
  setup: function() {
    this.element.makePositioned();
    this.originalLeft = parseFloat(this.element.getStyle('left') || '0');
    this.originalTop  = parseFloat(this.element.getStyle('top')  || '0');
    if (this.options.mode == 'absolute') {
      this.options.x = this.options.x - this.originalLeft;
      this.options.y = this.options.y - this.originalTop;
    }
  },
  update: function(position) {
    this.element.setStyle({
      left: (this.options.x  * position + this.originalLeft).round() + 'px',
      top:  (this.options.y  * position + this.originalTop).round()  + 'px'
    });
  }
});

// for backwards compatibility
Effect.MoveBy = function(element, toTop, toLeft) {
  return new Effect.Move(element,
    Object.extend({ x: toLeft, y: toTop }, arguments[3] || { }));
};

Effect.Scale = Class.create(Effect.Base, {
  initialize: function(element, percent) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      scaleX: true,
      scaleY: true,
      scaleContent: true,
      scaleFromCenter: false,
      scaleMode: 'box',        // 'box' or 'contents' or { } with provided values
      scaleFrom: 100.0,
      scaleTo:   percent
    }, arguments[2] || { });
    this.start(options);
  },
  setup: function() {
    this.restoreAfterFinish = this.options.restoreAfterFinish || false;
    this.elementPositioning = this.element.getStyle('position');

    this.originalStyle = { };
    ['top','left','width','height','fontSize'].each( function(k) {
      this.originalStyle[k] = this.element.style[k];
    }.bind(this));

    this.originalTop  = this.element.offsetTop;
    this.originalLeft = this.element.offsetLeft;

    var fontSize = this.element.getStyle('font-size') || '100%';
    ['em','px','%','pt'].each( function(fontSizeType) {
      if (fontSize.indexOf(fontSizeType)>0) {
        this.fontSize     = parseFloat(fontSize);
        this.fontSizeType = fontSizeType;
      }
    }.bind(this));

    this.factor = (this.options.scaleTo - this.options.scaleFrom)/100;

    this.dims = null;
    if (this.options.scaleMode=='box')
      this.dims = [this.element.offsetHeight, this.element.offsetWidth];
    if (/^content/.test(this.options.scaleMode))
      this.dims = [this.element.scrollHeight, this.element.scrollWidth];
    if (!this.dims)
      this.dims = [this.options.scaleMode.originalHeight,
                   this.options.scaleMode.originalWidth];
  },
  update: function(position) {
    var currentScale = (this.options.scaleFrom/100.0) + (this.factor * position);
    if (this.options.scaleContent && this.fontSize)
      this.element.setStyle({fontSize: this.fontSize * currentScale + this.fontSizeType });
    this.setDimensions(this.dims[0] * currentScale, this.dims[1] * currentScale);
  },
  finish: function(position) {
    if (this.restoreAfterFinish) this.element.setStyle(this.originalStyle);
  },
  setDimensions: function(height, width) {
    var d = { };
    if (this.options.scaleX) d.width = width.round() + 'px';
    if (this.options.scaleY) d.height = height.round() + 'px';
    if (this.options.scaleFromCenter) {
      var topd  = (height - this.dims[0])/2;
      var leftd = (width  - this.dims[1])/2;
      if (this.elementPositioning == 'absolute') {
        if (this.options.scaleY) d.top = this.originalTop-topd + 'px';
        if (this.options.scaleX) d.left = this.originalLeft-leftd + 'px';
      } else {
        if (this.options.scaleY) d.top = -topd + 'px';
        if (this.options.scaleX) d.left = -leftd + 'px';
      }
    }
    this.element.setStyle(d);
  }
});

Effect.Highlight = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({ startcolor: '#ffff99' }, arguments[1] || { });
    this.start(options);
  },
  setup: function() {
    // Prevent executing on elements not in the layout flow
    if (this.element.getStyle('display')=='none') { this.cancel(); return; }
    // Disable background image during the effect
    this.oldStyle = { };
    if (!this.options.keepBackgroundImage) {
      this.oldStyle.backgroundImage = this.element.getStyle('background-image');
      this.element.setStyle({backgroundImage: 'none'});
    }
    if (!this.options.endcolor)
      this.options.endcolor = this.element.getStyle('background-color').parseColor('#ffffff');
    if (!this.options.restorecolor)
      this.options.restorecolor = this.element.getStyle('background-color');
    // init color calculations
    this._base  = $R(0,2).map(function(i){ return parseInt(this.options.startcolor.slice(i*2+1,i*2+3),16) }.bind(this));
    this._delta = $R(0,2).map(function(i){ return parseInt(this.options.endcolor.slice(i*2+1,i*2+3),16)-this._base[i] }.bind(this));
  },
  update: function(position) {
    this.element.setStyle({backgroundColor: $R(0,2).inject('#',function(m,v,i){
      return m+((this._base[i]+(this._delta[i]*position)).round().toColorPart()); }.bind(this)) });
  },
  finish: function() {
    this.element.setStyle(Object.extend(this.oldStyle, {
      backgroundColor: this.options.restorecolor
    }));
  }
});

Effect.ScrollTo = function(element) {
  var options = arguments[1] || { },
  scrollOffsets = document.viewport.getScrollOffsets(),
  elementOffsets = $(element).cumulativeOffset();

  if (options.offset) elementOffsets[1] += options.offset;

  return new Effect.Tween(null,
    scrollOffsets.top,
    elementOffsets[1],
    options,
    function(p){ scrollTo(scrollOffsets.left, p.round()); }
  );
};

/* ------------- combination effects ------------- */

Effect.Fade = function(element) {
  element = $(element);
  var oldOpacity = element.getInlineOpacity();
  var options = Object.extend({
    from: element.getOpacity() || 1.0,
    to:   0.0,
    afterFinishInternal: function(effect) {
      if (effect.options.to!=0) return;
      effect.element.hide().setStyle({opacity: oldOpacity});
    }
  }, arguments[1] || { });
  return new Effect.Opacity(element,options);
};

Effect.Appear = function(element) {
  element = $(element);
  var options = Object.extend({
  from: (element.getStyle('display') == 'none' ? 0.0 : element.getOpacity() || 0.0),
  to:   1.0,
  // force Safari to render floated elements properly
  afterFinishInternal: function(effect) {
    effect.element.forceRerendering();
  },
  beforeSetup: function(effect) {
    effect.element.setOpacity(effect.options.from).show();
  }}, arguments[1] || { });
  return new Effect.Opacity(element,options);
};

Effect.Puff = function(element) {
  element = $(element);
  var oldStyle = {
    opacity: element.getInlineOpacity(),
    position: element.getStyle('position'),
    top:  element.style.top,
    left: element.style.left,
    width: element.style.width,
    height: element.style.height
  };
  return new Effect.Parallel(
   [ new Effect.Scale(element, 200,
      { sync: true, scaleFromCenter: true, scaleContent: true, restoreAfterFinish: true }),
     new Effect.Opacity(element, { sync: true, to: 0.0 } ) ],
     Object.extend({ duration: 1.0,
      beforeSetupInternal: function(effect) {
        Position.absolutize(effect.effects[0].element);
      },
      afterFinishInternal: function(effect) {
         effect.effects[0].element.hide().setStyle(oldStyle); }
     }, arguments[1] || { })
   );
};

Effect.BlindUp = function(element) {
  element = $(element);
  element.makeClipping();
  return new Effect.Scale(element, 0,
    Object.extend({ scaleContent: false,
      scaleX: false,
      restoreAfterFinish: true,
      afterFinishInternal: function(effect) {
        effect.element.hide().undoClipping();
      }
    }, arguments[1] || { })
  );
};

Effect.BlindDown = function(element) {
  element = $(element);
  var elementDimensions = element.getDimensions();
  return new Effect.Scale(element, 100, Object.extend({
    scaleContent: false,
    scaleX: false,
    scaleFrom: 0,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
      effect.element.makeClipping().setStyle({height: '0px'}).show();
    },
    afterFinishInternal: function(effect) {
      effect.element.undoClipping();
    }
  }, arguments[1] || { }));
};

Effect.SwitchOff = function(element) {
  element = $(element);
  var oldOpacity = element.getInlineOpacity();
  return new Effect.Appear(element, Object.extend({
    duration: 0.4,
    from: 0,
    transition: Effect.Transitions.flicker,
    afterFinishInternal: function(effect) {
      new Effect.Scale(effect.element, 1, {
        duration: 0.3, scaleFromCenter: true,
        scaleX: false, scaleContent: false, restoreAfterFinish: true,
        beforeSetup: function(effect) {
          effect.element.makePositioned().makeClipping();
        },
        afterFinishInternal: function(effect) {
          effect.element.hide().undoClipping().undoPositioned().setStyle({opacity: oldOpacity});
        }
      });
    }
  }, arguments[1] || { }));
};

Effect.DropOut = function(element) {
  element = $(element);
  var oldStyle = {
    top: element.getStyle('top'),
    left: element.getStyle('left'),
    opacity: element.getInlineOpacity() };
  return new Effect.Parallel(
    [ new Effect.Move(element, {x: 0, y: 100, sync: true }),
      new Effect.Opacity(element, { sync: true, to: 0.0 }) ],
    Object.extend(
      { duration: 0.5,
        beforeSetup: function(effect) {
          effect.effects[0].element.makePositioned();
        },
        afterFinishInternal: function(effect) {
          effect.effects[0].element.hide().undoPositioned().setStyle(oldStyle);
        }
      }, arguments[1] || { }));
};

Effect.Shake = function(element) {
  element = $(element);
  var options = Object.extend({
    distance: 20,
    duration: 0.5
  }, arguments[1] || {});
  var distance = parseFloat(options.distance);
  var split = parseFloat(options.duration) / 10.0;
  var oldStyle = {
    top: element.getStyle('top'),
    left: element.getStyle('left') };
    return new Effect.Move(element,
      { x:  distance, y: 0, duration: split, afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x:  distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x:  distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -distance, y: 0, duration: split, afterFinishInternal: function(effect) {
        effect.element.undoPositioned().setStyle(oldStyle);
  }}); }}); }}); }}); }}); }});
};

Effect.SlideDown = function(element) {
  element = $(element).cleanWhitespace();
  // SlideDown need to have the content of the element wrapped in a container element with fixed height!
  var oldInnerBottom = element.down().getStyle('bottom');
  var elementDimensions = element.getDimensions();
  return new Effect.Scale(element, 100, Object.extend({
    scaleContent: false,
    scaleX: false,
    scaleFrom: window.opera ? 0 : 1,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
      effect.element.makePositioned();
      effect.element.down().makePositioned();
      if (window.opera) effect.element.setStyle({top: ''});
      effect.element.makeClipping().setStyle({height: '0px'}).show();
    },
    afterUpdateInternal: function(effect) {
      effect.element.down().setStyle({bottom:
        (effect.dims[0] - effect.element.clientHeight) + 'px' });
    },
    afterFinishInternal: function(effect) {
      effect.element.undoClipping().undoPositioned();
      effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom}); }
    }, arguments[1] || { })
  );
};

Effect.SlideUp = function(element) {
  element = $(element).cleanWhitespace();
  var oldInnerBottom = element.down().getStyle('bottom');
  var elementDimensions = element.getDimensions();
  return new Effect.Scale(element, window.opera ? 0 : 1,
   Object.extend({ scaleContent: false,
    scaleX: false,
    scaleMode: 'box',
    scaleFrom: 100,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
      effect.element.makePositioned();
      effect.element.down().makePositioned();
      if (window.opera) effect.element.setStyle({top: ''});
      effect.element.makeClipping().show();
    },
    afterUpdateInternal: function(effect) {
      effect.element.down().setStyle({bottom:
        (effect.dims[0] - effect.element.clientHeight) + 'px' });
    },
    afterFinishInternal: function(effect) {
      effect.element.hide().undoClipping().undoPositioned();
      effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom});
    }
   }, arguments[1] || { })
  );
};

// Bug in opera makes the TD containing this element expand for a instance after finish
Effect.Squish = function(element) {
  return new Effect.Scale(element, window.opera ? 1 : 0, {
    restoreAfterFinish: true,
    beforeSetup: function(effect) {
      effect.element.makeClipping();
    },
    afterFinishInternal: function(effect) {
      effect.element.hide().undoClipping();
    }
  });
};

Effect.Grow = function(element) {
  element = $(element);
  var options = Object.extend({
    direction: 'center',
    moveTransition: Effect.Transitions.sinoidal,
    scaleTransition: Effect.Transitions.sinoidal,
    opacityTransition: Effect.Transitions.full
  }, arguments[1] || { });
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    height: element.style.height,
    width: element.style.width,
    opacity: element.getInlineOpacity() };

  var dims = element.getDimensions();
  var initialMoveX, initialMoveY;
  var moveX, moveY;

  switch (options.direction) {
    case 'top-left':
      initialMoveX = initialMoveY = moveX = moveY = 0;
      break;
    case 'top-right':
      initialMoveX = dims.width;
      initialMoveY = moveY = 0;
      moveX = -dims.width;
      break;
    case 'bottom-left':
      initialMoveX = moveX = 0;
      initialMoveY = dims.height;
      moveY = -dims.height;
      break;
    case 'bottom-right':
      initialMoveX = dims.width;
      initialMoveY = dims.height;
      moveX = -dims.width;
      moveY = -dims.height;
      break;
    case 'center':
      initialMoveX = dims.width / 2;
      initialMoveY = dims.height / 2;
      moveX = -dims.width / 2;
      moveY = -dims.height / 2;
      break;
  }

  return new Effect.Move(element, {
    x: initialMoveX,
    y: initialMoveY,
    duration: 0.01,
    beforeSetup: function(effect) {
      effect.element.hide().makeClipping().makePositioned();
    },
    afterFinishInternal: function(effect) {
      new Effect.Parallel(
        [ new Effect.Opacity(effect.element, { sync: true, to: 1.0, from: 0.0, transition: options.opacityTransition }),
          new Effect.Move(effect.element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition }),
          new Effect.Scale(effect.element, 100, {
            scaleMode: { originalHeight: dims.height, originalWidth: dims.width },
            sync: true, scaleFrom: window.opera ? 1 : 0, transition: options.scaleTransition, restoreAfterFinish: true})
        ], Object.extend({
             beforeSetup: function(effect) {
               effect.effects[0].element.setStyle({height: '0px'}).show();
             },
             afterFinishInternal: function(effect) {
               effect.effects[0].element.undoClipping().undoPositioned().setStyle(oldStyle);
             }
           }, options)
      );
    }
  });
};

Effect.Shrink = function(element) {
  element = $(element);
  var options = Object.extend({
    direction: 'center',
    moveTransition: Effect.Transitions.sinoidal,
    scaleTransition: Effect.Transitions.sinoidal,
    opacityTransition: Effect.Transitions.none
  }, arguments[1] || { });
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    height: element.style.height,
    width: element.style.width,
    opacity: element.getInlineOpacity() };

  var dims = element.getDimensions();
  var moveX, moveY;

  switch (options.direction) {
    case 'top-left':
      moveX = moveY = 0;
      break;
    case 'top-right':
      moveX = dims.width;
      moveY = 0;
      break;
    case 'bottom-left':
      moveX = 0;
      moveY = dims.height;
      break;
    case 'bottom-right':
      moveX = dims.width;
      moveY = dims.height;
      break;
    case 'center':
      moveX = dims.width / 2;
      moveY = dims.height / 2;
      break;
  }

  return new Effect.Parallel(
    [ new Effect.Opacity(element, { sync: true, to: 0.0, from: 1.0, transition: options.opacityTransition }),
      new Effect.Scale(element, window.opera ? 1 : 0, { sync: true, transition: options.scaleTransition, restoreAfterFinish: true}),
      new Effect.Move(element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition })
    ], Object.extend({
         beforeStartInternal: function(effect) {
           effect.effects[0].element.makePositioned().makeClipping();
         },
         afterFinishInternal: function(effect) {
           effect.effects[0].element.hide().undoClipping().undoPositioned().setStyle(oldStyle); }
       }, options)
  );
};

Effect.Pulsate = function(element) {
  element = $(element);
  var options    = arguments[1] || { },
    oldOpacity = element.getInlineOpacity(),
    transition = options.transition || Effect.Transitions.linear,
    reverser   = function(pos){
      return 1 - transition((-Math.cos((pos*(options.pulses||5)*2)*Math.PI)/2) + .5);
    };

  return new Effect.Opacity(element,
    Object.extend(Object.extend({  duration: 2.0, from: 0,
      afterFinishInternal: function(effect) { effect.element.setStyle({opacity: oldOpacity}); }
    }, options), {transition: reverser}));
};

Effect.Fold = function(element) {
  element = $(element);
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    width: element.style.width,
    height: element.style.height };
  element.makeClipping();
  return new Effect.Scale(element, 5, Object.extend({
    scaleContent: false,
    scaleX: false,
    afterFinishInternal: function(effect) {
    new Effect.Scale(element, 1, {
      scaleContent: false,
      scaleY: false,
      afterFinishInternal: function(effect) {
        effect.element.hide().undoClipping().setStyle(oldStyle);
      } });
  }}, arguments[1] || { }));
};

Effect.Morph = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      style: { }
    }, arguments[1] || { });

    if (!Object.isString(options.style)) this.style = $H(options.style);
    else {
      if (options.style.include(':'))
        this.style = options.style.parseStyle();
      else {
        this.element.addClassName(options.style);
        this.style = $H(this.element.getStyles());
        this.element.removeClassName(options.style);
        var css = this.element.getStyles();
        this.style = this.style.reject(function(style) {
          return style.value == css[style.key];
        });
        options.afterFinishInternal = function(effect) {
          effect.element.addClassName(effect.options.style);
          effect.transforms.each(function(transform) {
            effect.element.style[transform.style] = '';
          });
        };
      }
    }
    this.start(options);
  },

  setup: function(){
    function parseColor(color){
      if (!color || ['rgba(0, 0, 0, 0)','transparent'].include(color)) color = '#ffffff';
      color = color.parseColor();
      return $R(0,2).map(function(i){
        return parseInt( color.slice(i*2+1,i*2+3), 16 );
      });
    }
    this.transforms = this.style.map(function(pair){
      var property = pair[0], value = pair[1], unit = null;

      if (value.parseColor('#zzzzzz') != '#zzzzzz') {
        value = value.parseColor();
        unit  = 'color';
      } else if (property == 'opacity') {
        value = parseFloat(value);
        if (Prototype.Browser.IE && (!this.element.currentStyle.hasLayout))
          this.element.setStyle({zoom: 1});
      } else if (Element.CSS_LENGTH.test(value)) {
          var components = value.match(/^([\+\-]?[0-9\.]+)(.*)$/);
          value = parseFloat(components[1]);
          unit = (components.length == 3) ? components[2] : null;
      }

      var originalValue = this.element.getStyle(property);
      return {
        style: property.camelize(),
        originalValue: unit=='color' ? parseColor(originalValue) : parseFloat(originalValue || 0),
        targetValue: unit=='color' ? parseColor(value) : value,
        unit: unit
      };
    }.bind(this)).reject(function(transform){
      return (
        (transform.originalValue == transform.targetValue) ||
        (
          transform.unit != 'color' &&
          (isNaN(transform.originalValue) || isNaN(transform.targetValue))
        )
      );
    });
  },
  update: function(position) {
    var style = { }, transform, i = this.transforms.length;
    while(i--)
      style[(transform = this.transforms[i]).style] =
        transform.unit=='color' ? '#'+
          (Math.round(transform.originalValue[0]+
            (transform.targetValue[0]-transform.originalValue[0])*position)).toColorPart() +
          (Math.round(transform.originalValue[1]+
            (transform.targetValue[1]-transform.originalValue[1])*position)).toColorPart() +
          (Math.round(transform.originalValue[2]+
            (transform.targetValue[2]-transform.originalValue[2])*position)).toColorPart() :
        (transform.originalValue +
          (transform.targetValue - transform.originalValue) * position).toFixed(3) +
            (transform.unit === null ? '' : transform.unit);
    this.element.setStyle(style, true);
  }
});

Effect.Transform = Class.create({
  initialize: function(tracks){
    this.tracks  = [];
    this.options = arguments[1] || { };
    this.addTracks(tracks);
  },
  addTracks: function(tracks){
    tracks.each(function(track){
      track = $H(track);
      var data = track.values().first();
      this.tracks.push($H({
        ids:     track.keys().first(),
        effect:  Effect.Morph,
        options: { style: data }
      }));
    }.bind(this));
    return this;
  },
  play: function(){
    return new Effect.Parallel(
      this.tracks.map(function(track){
        var ids = track.get('ids'), effect = track.get('effect'), options = track.get('options');
        var elements = [$(ids) || $$(ids)].flatten();
        return elements.map(function(e){ return new effect(e, Object.extend({ sync:true }, options)) });
      }).flatten(),
      this.options
    );
  }
});

Element.CSS_PROPERTIES = $w(
  'backgroundColor backgroundPosition borderBottomColor borderBottomStyle ' +
  'borderBottomWidth borderLeftColor borderLeftStyle borderLeftWidth ' +
  'borderRightColor borderRightStyle borderRightWidth borderSpacing ' +
  'borderTopColor borderTopStyle borderTopWidth bottom clip color ' +
  'fontSize fontWeight height left letterSpacing lineHeight ' +
  'marginBottom marginLeft marginRight marginTop markerOffset maxHeight '+
  'maxWidth minHeight minWidth opacity outlineColor outlineOffset ' +
  'outlineWidth paddingBottom paddingLeft paddingRight paddingTop ' +
  'right textIndent top width wordSpacing zIndex');

Element.CSS_LENGTH = /^(([\+\-]?[0-9\.]+)(em|ex|px|in|cm|mm|pt|pc|\%))|0$/;

String.__parseStyleElement = document.createElement('div');
String.prototype.parseStyle = function(){
  var style, styleRules = $H();
  if (Prototype.Browser.WebKit)
    style = new Element('div',{style:this}).style;
  else {
    String.__parseStyleElement.innerHTML = '<div style="' + this + '"></div>';
    style = String.__parseStyleElement.childNodes[0].style;
  }

  Element.CSS_PROPERTIES.each(function(property){
    if (style[property]) styleRules.set(property, style[property]);
  });

  if (Prototype.Browser.IE && this.include('opacity'))
    styleRules.set('opacity', this.match(/opacity:\s*((?:0|1)?(?:\.\d*)?)/)[1]);

  return styleRules;
};

if (document.defaultView && document.defaultView.getComputedStyle) {
  Element.getStyles = function(element) {
    var css = document.defaultView.getComputedStyle($(element), null);
    return Element.CSS_PROPERTIES.inject({ }, function(styles, property) {
      styles[property] = css[property];
      return styles;
    });
  };
} else {
  Element.getStyles = function(element) {
    element = $(element);
    var css = element.currentStyle, styles;
    styles = Element.CSS_PROPERTIES.inject({ }, function(results, property) {
      results[property] = css[property];
      return results;
    });
    if (!styles.opacity) styles.opacity = element.getOpacity();
    return styles;
  };
}

Effect.Methods = {
  morph: function(element, style) {
    element = $(element);
    new Effect.Morph(element, Object.extend({ style: style }, arguments[2] || { }));
    return element;
  },
  visualEffect: function(element, effect, options) {
    element = $(element);
    var s = effect.dasherize().camelize(), klass = s.charAt(0).toUpperCase() + s.substring(1);
    new Effect[klass](element, options);
    return element;
  },
  highlight: function(element, options) {
    element = $(element);
    new Effect.Highlight(element, options);
    return element;
  }
};

$w('fade appear grow shrink fold blindUp blindDown slideUp slideDown '+
  'pulsate shake puff squish switchOff dropOut').each(
  function(effect) {
    Effect.Methods[effect] = function(element, options){
      element = $(element);
      Effect[effect.charAt(0).toUpperCase() + effect.substring(1)](element, options);
      return element;
    };
  }
);

$w('getInlineOpacity forceRerendering setContentZoom collectTextNodes collectTextNodesIgnoreClass getStyles').each(
  function(f) { Effect.Methods[f] = Element[f]; }
);

Element.addMethods(Effect.Methods);
// script.aculo.us controls.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

// Copyright (c) 2005-2008 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//           (c) 2005-2008 Ivan Krstic (http://blogs.law.harvard.edu/ivan)
//           (c) 2005-2008 Jon Tirsen (http://www.tirsen.com)
// Contributors:
//  Richard Livsey
//  Rahul Bhargava
//  Rob Wills
//
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

// Autocompleter.Base handles all the autocompletion functionality
// that's independent of the data source for autocompletion. This
// includes drawing the autocompletion menu, observing keyboard
// and mouse events, and similar.
//
// Specific autocompleters need to provide, at the very least,
// a getUpdatedChoices function that will be invoked every time
// the text inside the monitored textbox changes. This method
// should get the text for which to provide autocompletion by
// invoking this.getToken(), NOT by directly accessing
// this.element.value. This is to allow incremental tokenized
// autocompletion. Specific auto-completion logic (AJAX, etc)
// belongs in getUpdatedChoices.
//
// Tokenized incremental autocompletion is enabled automatically
// when an autocompleter is instantiated with the 'tokens' option
// in the options parameter, e.g.:
// new Ajax.Autocompleter('id','upd', '/url/', { tokens: ',' });
// will incrementally autocomplete with a comma as the token.
// Additionally, ',' in the above example can be replaced with
// a token array, e.g. { tokens: [',', '\n'] } which
// enables autocompletion on multiple tokens. This is most
// useful when one of the tokens is \n (a newline), as it
// allows smart autocompletion after linebreaks.

if(typeof Effect == 'undefined')
  throw("controls.js requires including script.aculo.us' effects.js library");

var Autocompleter = { };
Autocompleter.Base = Class.create({
  baseInitialize: function(element, update, options) {
    element          = $(element);
    this.element     = element;
    this.update      = $(update);
    this.hasFocus    = false;
    this.changed     = false;
    this.active      = false;
    this.index       = 0;
    this.entryCount  = 0;
    this.oldElementValue = this.element.value;

    if(this.setOptions)
      this.setOptions(options);
    else
      this.options = options || { };

    this.options.paramName    = this.options.paramName || this.element.name;
    this.options.tokens       = this.options.tokens || [];
    this.options.frequency    = this.options.frequency || 0.4;
    this.options.minChars     = this.options.minChars || 1;
    this.options.onShow       = this.options.onShow ||
      function(element, update){
        if(!update.style.position || update.style.position=='absolute') {
          update.style.position = 'absolute';
          Position.clone(element, update, {
            setHeight: false,
            offsetTop: element.offsetHeight
          });
        }
        Effect.Appear(update,{duration:0.15});
      };
    this.options.onHide = this.options.onHide ||
      function(element, update){ new Effect.Fade(update,{duration:0.15}) };

    if(typeof(this.options.tokens) == 'string')
      this.options.tokens = new Array(this.options.tokens);
    // Force carriage returns as token delimiters anyway
    if (!this.options.tokens.include('\n'))
      this.options.tokens.push('\n');

    this.observer = null;

    this.element.setAttribute('autocomplete','off');

    Element.hide(this.update);

    Event.observe(this.element, 'blur', this.onBlur.bindAsEventListener(this));
    Event.observe(this.element, 'keydown', this.onKeyPress.bindAsEventListener(this));
  },

  show: function() {
    if(Element.getStyle(this.update, 'display')=='none') this.options.onShow(this.element, this.update);
    if(!this.iefix &&
      (Prototype.Browser.IE) &&
      (Element.getStyle(this.update, 'position')=='absolute')) {
      new Insertion.After(this.update,
       '<iframe id="' + this.update.id + '_iefix" '+
       'style="display:none;position:absolute;filter:progid:DXImageTransform.Microsoft.Alpha(opacity=0);" ' +
       'src="javascript:false;" frameborder="0" scrolling="no"></iframe>');
      this.iefix = $(this.update.id+'_iefix');
    }
    if(this.iefix) setTimeout(this.fixIEOverlapping.bind(this), 50);
  },

  fixIEOverlapping: function() {
    Position.clone(this.update, this.iefix, {setTop:(!this.update.style.height)});
    this.iefix.style.zIndex = 1;
    this.update.style.zIndex = 2;
    Element.show(this.iefix);
  },

  hide: function() {
    this.stopIndicator();
    if(Element.getStyle(this.update, 'display')!='none') this.options.onHide(this.element, this.update);
    if(this.iefix) Element.hide(this.iefix);
  },

  startIndicator: function() {
    if(this.options.indicator) Element.show(this.options.indicator);
  },

  stopIndicator: function() {
    if(this.options.indicator) Element.hide(this.options.indicator);
  },

  onKeyPress: function(event) {
    if(this.active)
      switch(event.keyCode) {
       case Event.KEY_TAB:
       case Event.KEY_RETURN:
         this.selectEntry();
         Event.stop(event);
       case Event.KEY_ESC:
         this.hide();
         this.active = false;
         Event.stop(event);
         return;
       case Event.KEY_LEFT:
       case Event.KEY_RIGHT:
         return;
       case Event.KEY_UP:
         this.markPrevious();
         this.render();
         Event.stop(event);
         return;
       case Event.KEY_DOWN:
         this.markNext();
         this.render();
         Event.stop(event);
         return;
      }
     else
       if(event.keyCode==Event.KEY_TAB || event.keyCode==Event.KEY_RETURN ||
         (Prototype.Browser.WebKit > 0 && event.keyCode == 0)) return;

    this.changed = true;
    this.hasFocus = true;

    if(this.observer) clearTimeout(this.observer);
      this.observer =
        setTimeout(this.onObserverEvent.bind(this), this.options.frequency*1000);
  },

  activate: function() {
    this.changed = false;
    this.hasFocus = true;
    this.getUpdatedChoices();
  },

  onHover: function(event) {
    var element = Event.findElement(event, 'LI');
    if(this.index != element.autocompleteIndex)
    {
        this.index = element.autocompleteIndex;
        this.render();
    }
    Event.stop(event);
  },

  onClick: function(event) {
    var element = Event.findElement(event, 'LI');
    this.index = element.autocompleteIndex;
    this.selectEntry();
    this.hide();
  },

  onBlur: function(event) {
    // needed to make click events working
    setTimeout(this.hide.bind(this), 250);
    this.hasFocus = false;
    this.active = false;
  },

  render: function() {
    if(this.entryCount > 0) {
      for (var i = 0; i < this.entryCount; i++)
        this.index==i ?
          Element.addClassName(this.getEntry(i),"selected") :
          Element.removeClassName(this.getEntry(i),"selected");
      if(this.hasFocus) {
        this.show();
        this.active = true;
      }
    } else {
      this.active = false;
      this.hide();
    }
  },

  markPrevious: function() {
    if(this.index > 0) this.index--;
      else this.index = this.entryCount-1;
    this.getEntry(this.index).scrollIntoView(true);
  },

  markNext: function() {
    if(this.index < this.entryCount-1) this.index++;
      else this.index = 0;
    this.getEntry(this.index).scrollIntoView(false);
  },

  getEntry: function(index) {
    return this.update.firstChild.childNodes[index];
  },

  getCurrentEntry: function() {
    return this.getEntry(this.index);
  },

  selectEntry: function() {
    this.active = false;
    this.updateElement(this.getCurrentEntry());
  },

  updateElement: function(selectedElement) {
    if (this.options.updateElement) {
      this.options.updateElement(selectedElement);
      return;
    }
    var value = '';
    if (this.options.select) {
      var nodes = $(selectedElement).select('.' + this.options.select) || [];
      if(nodes.length>0) value = Element.collectTextNodes(nodes[0], this.options.select);
    } else
      value = Element.collectTextNodesIgnoreClass(selectedElement, 'informal');

    var bounds = this.getTokenBounds();
    if (bounds[0] != -1) {
      var newValue = this.element.value.substr(0, bounds[0]);
      var whitespace = this.element.value.substr(bounds[0]).match(/^\s+/);
      if (whitespace)
        newValue += whitespace[0];
      this.element.value = newValue + value + this.element.value.substr(bounds[1]);
    } else {
      this.element.value = value;
    }
    this.oldElementValue = this.element.value;
    this.element.focus();

    if (this.options.afterUpdateElement)
      this.options.afterUpdateElement(this.element, selectedElement);
  },

  updateChoices: function(choices) {
    if(!this.changed && this.hasFocus) {
      this.update.innerHTML = choices;
      Element.cleanWhitespace(this.update);
      Element.cleanWhitespace(this.update.down());

      if(this.update.firstChild && this.update.down().childNodes) {
        this.entryCount =
          this.update.down().childNodes.length;
        for (var i = 0; i < this.entryCount; i++) {
          var entry = this.getEntry(i);
          entry.autocompleteIndex = i;
          this.addObservers(entry);
        }
      } else {
        this.entryCount = 0;
      }

      this.stopIndicator();
      this.index = 0;

      if(this.entryCount==1 && this.options.autoSelect) {
        this.selectEntry();
        this.hide();
      } else {
        this.render();
      }
    }
  },

  addObservers: function(element) {
    Event.observe(element, "mouseover", this.onHover.bindAsEventListener(this));
    Event.observe(element, "click", this.onClick.bindAsEventListener(this));
  },

  onObserverEvent: function() {
    this.changed = false;
    this.tokenBounds = null;
    if(this.getToken().length>=this.options.minChars) {
      this.getUpdatedChoices();
    } else {
      this.active = false;
      this.hide();
    }
    this.oldElementValue = this.element.value;
  },

  getToken: function() {
    var bounds = this.getTokenBounds();
    return this.element.value.substring(bounds[0], bounds[1]).strip();
  },

  getTokenBounds: function() {
    if (null != this.tokenBounds) return this.tokenBounds;
    var value = this.element.value;
    if (value.strip().empty()) return [-1, 0];
    var diff = arguments.callee.getFirstDifferencePos(value, this.oldElementValue);
    var offset = (diff == this.oldElementValue.length ? 1 : 0);
    var prevTokenPos = -1, nextTokenPos = value.length;
    var tp;
    for (var index = 0, l = this.options.tokens.length; index < l; ++index) {
      tp = value.lastIndexOf(this.options.tokens[index], diff + offset - 1);
      if (tp > prevTokenPos) prevTokenPos = tp;
      tp = value.indexOf(this.options.tokens[index], diff + offset);
      if (-1 != tp && tp < nextTokenPos) nextTokenPos = tp;
    }
    return (this.tokenBounds = [prevTokenPos + 1, nextTokenPos]);
  }
});

Autocompleter.Base.prototype.getTokenBounds.getFirstDifferencePos = function(newS, oldS) {
  var boundary = Math.min(newS.length, oldS.length);
  for (var index = 0; index < boundary; ++index)
    if (newS[index] != oldS[index])
      return index;
  return boundary;
};

Ajax.Autocompleter = Class.create(Autocompleter.Base, {
  initialize: function(element, update, url, options) {
    this.baseInitialize(element, update, options);
    this.options.asynchronous  = true;
    this.options.onComplete    = this.onComplete.bind(this);
    this.options.defaultParams = this.options.parameters || null;
    this.url                   = url;
  },

  getUpdatedChoices: function() {
    this.startIndicator();

    var entry = encodeURIComponent(this.options.paramName) + '=' +
      encodeURIComponent(this.getToken());

    this.options.parameters = this.options.callback ?
      this.options.callback(this.element, entry) : entry;

    if(this.options.defaultParams)
      this.options.parameters += '&' + this.options.defaultParams;

    new Ajax.Request(this.url, this.options);
  },

  onComplete: function(request) {
    this.updateChoices(request.responseText);
  }
});

// The local array autocompleter. Used when you'd prefer to
// inject an array of autocompletion options into the page, rather
// than sending out Ajax queries, which can be quite slow sometimes.
//
// The constructor takes four parameters. The first two are, as usual,
// the id of the monitored textbox, and id of the autocompletion menu.
// The third is the array you want to autocomplete from, and the fourth
// is the options block.
//
// Extra local autocompletion options:
// - choices - How many autocompletion choices to offer
//
// - partialSearch - If false, the autocompleter will match entered
//                    text only at the beginning of strings in the
//                    autocomplete array. Defaults to true, which will
//                    match text at the beginning of any *word* in the
//                    strings in the autocomplete array. If you want to
//                    search anywhere in the string, additionally set
//                    the option fullSearch to true (default: off).
//
// - fullSsearch - Search anywhere in autocomplete array strings.
//
// - partialChars - How many characters to enter before triggering
//                   a partial match (unlike minChars, which defines
//                   how many characters are required to do any match
//                   at all). Defaults to 2.
//
// - ignoreCase - Whether to ignore case when autocompleting.
//                 Defaults to true.
//
// It's possible to pass in a custom function as the 'selector'
// option, if you prefer to write your own autocompletion logic.
// In that case, the other options above will not apply unless
// you support them.

Autocompleter.Local = Class.create(Autocompleter.Base, {
  initialize: function(element, update, array, options) {
    this.baseInitialize(element, update, options);
    this.options.array = array;
  },

  getUpdatedChoices: function() {
    this.updateChoices(this.options.selector(this));
  },

  setOptions: function(options) {
    this.options = Object.extend({
      choices: 10,
      partialSearch: true,
      partialChars: 2,
      ignoreCase: true,
      fullSearch: false,
      selector: function(instance) {
        var ret       = []; // Beginning matches
        var partial   = []; // Inside matches
        var entry     = instance.getToken();
        var count     = 0;

        for (var i = 0; i < instance.options.array.length &&
          ret.length < instance.options.choices ; i++) {

          var elem = instance.options.array[i];
          var foundPos = instance.options.ignoreCase ?
            elem.toLowerCase().indexOf(entry.toLowerCase()) :
            elem.indexOf(entry);

          while (foundPos != -1) {
            if (foundPos == 0 && elem.length != entry.length) {
              ret.push("<li><strong>" + elem.substr(0, entry.length) + "</strong>" +
                elem.substr(entry.length) + "</li>");
              break;
            } else if (entry.length >= instance.options.partialChars &&
              instance.options.partialSearch && foundPos != -1) {
              if (instance.options.fullSearch || /\s/.test(elem.substr(foundPos-1,1))) {
                partial.push("<li>" + elem.substr(0, foundPos) + "<strong>" +
                  elem.substr(foundPos, entry.length) + "</strong>" + elem.substr(
                  foundPos + entry.length) + "</li>");
                break;
              }
            }

            foundPos = instance.options.ignoreCase ?
              elem.toLowerCase().indexOf(entry.toLowerCase(), foundPos + 1) :
              elem.indexOf(entry, foundPos + 1);

          }
        }
        if (partial.length)
          ret = ret.concat(partial.slice(0, instance.options.choices - ret.length));
        return "<ul>" + ret.join('') + "</ul>";
      }
    }, options || { });
  }
});

// AJAX in-place editor and collection editor
// Full rewrite by Christophe Porteneuve <tdd@tddsworld.com> (April 2007).

// Use this if you notice weird scrolling problems on some browsers,
// the DOM might be a bit confused when this gets called so do this
// waits 1 ms (with setTimeout) until it does the activation
Field.scrollFreeActivate = function(field) {
  setTimeout(function() {
    Field.activate(field);
  }, 1);
};

Ajax.InPlaceEditor = Class.create({
  initialize: function(element, url, options) {
    this.url = url;
    this.element = element = $(element);
    this.prepareOptions();
    this._controls = { };
    arguments.callee.dealWithDeprecatedOptions(options); // DEPRECATION LAYER!!!
    Object.extend(this.options, options || { });
    if (!this.options.formId && this.element.id) {
      this.options.formId = this.element.id + '-inplaceeditor';
      if ($(this.options.formId))
        this.options.formId = '';
    }
    if (this.options.externalControl)
      this.options.externalControl = $(this.options.externalControl);
    if (!this.options.externalControl)
      this.options.externalControlOnly = false;
    this._originalBackground = this.element.getStyle('background-color') || 'transparent';
    this.element.title = this.options.clickToEditText;
    this._boundCancelHandler = this.handleFormCancellation.bind(this);
    this._boundComplete = (this.options.onComplete || Prototype.emptyFunction).bind(this);
    this._boundFailureHandler = this.handleAJAXFailure.bind(this);
    this._boundSubmitHandler = this.handleFormSubmission.bind(this);
    this._boundWrapperHandler = this.wrapUp.bind(this);
    this.registerListeners();
  },
  checkForEscapeOrReturn: function(e) {
    if (!this._editing || e.ctrlKey || e.altKey || e.shiftKey) return;
    if (Event.KEY_ESC == e.keyCode)
      this.handleFormCancellation(e);
    else if (Event.KEY_RETURN == e.keyCode)
      this.handleFormSubmission(e);
  },
  createControl: function(mode, handler, extraClasses) {
    var control = this.options[mode + 'Control'];
    var text = this.options[mode + 'Text'];
    if ('button' == control) {
      var btn = document.createElement('input');
      btn.type = 'submit';
      btn.value = text;
      btn.className = 'editor_' + mode + '_button';
      if ('cancel' == mode)
        btn.onclick = this._boundCancelHandler;
      this._form.appendChild(btn);
      this._controls[mode] = btn;
    } else if ('link' == control) {
      var link = document.createElement('a');
      link.href = '#';
      link.appendChild(document.createTextNode(text));
      link.onclick = 'cancel' == mode ? this._boundCancelHandler : this._boundSubmitHandler;
      link.className = 'editor_' + mode + '_link';
      if (extraClasses)
        link.className += ' ' + extraClasses;
      this._form.appendChild(link);
      this._controls[mode] = link;
    }
  },
  createEditField: function() {
    var text = (this.options.loadTextURL ? this.options.loadingText : this.getText());
    var fld;
    if (1 >= this.options.rows && !/\r|\n/.test(this.getText())) {
      fld = document.createElement('input');
      fld.type = 'text';
      var size = this.options.size || this.options.cols || 0;
      if (0 < size) fld.size = size;
    } else {
      fld = document.createElement('textarea');
      fld.rows = (1 >= this.options.rows ? this.options.autoRows : this.options.rows);
      fld.cols = this.options.cols || 40;
    }
    fld.name = this.options.paramName;
    fld.value = text; // No HTML breaks conversion anymore
    fld.className = 'editor_field';
    if (this.options.submitOnBlur)
      fld.onblur = this._boundSubmitHandler;
    this._controls.editor = fld;
    if (this.options.loadTextURL)
      this.loadExternalText();
    this._form.appendChild(this._controls.editor);
  },
  createForm: function() {
    var ipe = this;
    function addText(mode, condition) {
      var text = ipe.options['text' + mode + 'Controls'];
      if (!text || condition === false) return;
      ipe._form.appendChild(document.createTextNode(text));
    };
    this._form = $(document.createElement('form'));
    this._form.id = this.options.formId;
    this._form.addClassName(this.options.formClassName);
    this._form.onsubmit = this._boundSubmitHandler;
    this.createEditField();
    if ('textarea' == this._controls.editor.tagName.toLowerCase())
      this._form.appendChild(document.createElement('br'));
    if (this.options.onFormCustomization)
      this.options.onFormCustomization(this, this._form);
    addText('Before', this.options.okControl || this.options.cancelControl);
    this.createControl('ok', this._boundSubmitHandler);
    addText('Between', this.options.okControl && this.options.cancelControl);
    this.createControl('cancel', this._boundCancelHandler, 'editor_cancel');
    addText('After', this.options.okControl || this.options.cancelControl);
  },
  destroy: function() {
    if (this._oldInnerHTML)
      this.element.innerHTML = this._oldInnerHTML;
    this.leaveEditMode();
    this.unregisterListeners();
  },
  enterEditMode: function(e) {
    if (this._saving || this._editing) return;
    this._editing = true;
    this.triggerCallback('onEnterEditMode');
    if (this.options.externalControl)
      this.options.externalControl.hide();
    this.element.hide();
    this.createForm();
    this.element.parentNode.insertBefore(this._form, this.element);
    if (!this.options.loadTextURL)
      this.postProcessEditField();
    if (e) Event.stop(e);
  },
  enterHover: function(e) {
    if (this.options.hoverClassName)
      this.element.addClassName(this.options.hoverClassName);
    if (this._saving) return;
    this.triggerCallback('onEnterHover');
  },
  getText: function() {
    return this.element.innerHTML.unescapeHTML();
  },
  handleAJAXFailure: function(transport) {
    this.triggerCallback('onFailure', transport);
    if (this._oldInnerHTML) {
      this.element.innerHTML = this._oldInnerHTML;
      this._oldInnerHTML = null;
    }
  },
  handleFormCancellation: function(e) {
    this.wrapUp();
    if (e) Event.stop(e);
  },
  handleFormSubmission: function(e) {
    var form = this._form;
    var value = $F(this._controls.editor);
    this.prepareSubmission();
    var params = this.options.callback(form, value) || '';
    if (Object.isString(params))
      params = params.toQueryParams();
    params.editorId = this.element.id;
    if (this.options.htmlResponse) {
      var options = Object.extend({ evalScripts: true }, this.options.ajaxOptions);
      Object.extend(options, {
        parameters: params,
        onComplete: this._boundWrapperHandler,
        onFailure: this._boundFailureHandler
      });
      new Ajax.Updater({ success: this.element }, this.url, options);
    } else {
      var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
      Object.extend(options, {
        parameters: params,
        onComplete: this._boundWrapperHandler,
        onFailure: this._boundFailureHandler
      });
      new Ajax.Request(this.url, options);
    }
    if (e) Event.stop(e);
  },
  leaveEditMode: function() {
    this.element.removeClassName(this.options.savingClassName);
    this.removeForm();
    this.leaveHover();
    this.element.style.backgroundColor = this._originalBackground;
    this.element.show();
    if (this.options.externalControl)
      this.options.externalControl.show();
    this._saving = false;
    this._editing = false;
    this._oldInnerHTML = null;
    this.triggerCallback('onLeaveEditMode');
  },
  leaveHover: function(e) {
    if (this.options.hoverClassName)
      this.element.removeClassName(this.options.hoverClassName);
    if (this._saving) return;
    this.triggerCallback('onLeaveHover');
  },
  loadExternalText: function() {
    this._form.addClassName(this.options.loadingClassName);
    this._controls.editor.disabled = true;
    var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
    Object.extend(options, {
      parameters: 'editorId=' + encodeURIComponent(this.element.id),
      onComplete: Prototype.emptyFunction,
      onSuccess: function(transport) {
        this._form.removeClassName(this.options.loadingClassName);
        var text = transport.responseText;
        if (this.options.stripLoadedTextTags)
          text = text.stripTags();
        this._controls.editor.value = text;
        this._controls.editor.disabled = false;
        this.postProcessEditField();
      }.bind(this),
      onFailure: this._boundFailureHandler
    });
    new Ajax.Request(this.options.loadTextURL, options);
  },
  postProcessEditField: function() {
    var fpc = this.options.fieldPostCreation;
    if (fpc)
      $(this._controls.editor)['focus' == fpc ? 'focus' : 'activate']();
  },
  prepareOptions: function() {
    this.options = Object.clone(Ajax.InPlaceEditor.DefaultOptions);
    Object.extend(this.options, Ajax.InPlaceEditor.DefaultCallbacks);
    [this._extraDefaultOptions].flatten().compact().each(function(defs) {
      Object.extend(this.options, defs);
    }.bind(this));
  },
  prepareSubmission: function() {
    this._saving = true;
    this.removeForm();
    this.leaveHover();
    this.showSaving();
  },
  registerListeners: function() {
    this._listeners = { };
    var listener;
    $H(Ajax.InPlaceEditor.Listeners).each(function(pair) {
      listener = this[pair.value].bind(this);
      this._listeners[pair.key] = listener;
      if (!this.options.externalControlOnly)
        this.element.observe(pair.key, listener);
      if (this.options.externalControl)
        this.options.externalControl.observe(pair.key, listener);
    }.bind(this));
  },
  removeForm: function() {
    if (!this._form) return;
    this._form.remove();
    this._form = null;
    this._controls = { };
  },
  showSaving: function() {
    this._oldInnerHTML = this.element.innerHTML;
    this.element.innerHTML = this.options.savingText;
    this.element.addClassName(this.options.savingClassName);
    this.element.style.backgroundColor = this._originalBackground;
    this.element.show();
  },
  triggerCallback: function(cbName, arg) {
    if ('function' == typeof this.options[cbName]) {
      this.options[cbName](this, arg);
    }
  },
  unregisterListeners: function() {
    $H(this._listeners).each(function(pair) {
      if (!this.options.externalControlOnly)
        this.element.stopObserving(pair.key, pair.value);
      if (this.options.externalControl)
        this.options.externalControl.stopObserving(pair.key, pair.value);
    }.bind(this));
  },
  wrapUp: function(transport) {
    this.leaveEditMode();
    // Can't use triggerCallback due to backward compatibility: requires
    // binding + direct element
    this._boundComplete(transport, this.element);
  }
});

Object.extend(Ajax.InPlaceEditor.prototype, {
  dispose: Ajax.InPlaceEditor.prototype.destroy
});

Ajax.InPlaceCollectionEditor = Class.create(Ajax.InPlaceEditor, {
  initialize: function($super, element, url, options) {
    this._extraDefaultOptions = Ajax.InPlaceCollectionEditor.DefaultOptions;
    $super(element, url, options);
  },

  createEditField: function() {
    var list = document.createElement('select');
    list.name = this.options.paramName;
    list.size = 1;
    this._controls.editor = list;
    this._collection = this.options.collection || [];
    if (this.options.loadCollectionURL)
      this.loadCollection();
    else
      this.checkForExternalText();
    this._form.appendChild(this._controls.editor);
  },

  loadCollection: function() {
    this._form.addClassName(this.options.loadingClassName);
    this.showLoadingText(this.options.loadingCollectionText);
    var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
    Object.extend(options, {
      parameters: 'editorId=' + encodeURIComponent(this.element.id),
      onComplete: Prototype.emptyFunction,
      onSuccess: function(transport) {
        var js = transport.responseText.strip();
        if (!/^\[.*\]$/.test(js)) // TODO: improve sanity check
          throw('Server returned an invalid collection representation.');
        this._collection = eval(js);
        this.checkForExternalText();
      }.bind(this),
      onFailure: this.onFailure
    });
    new Ajax.Request(this.options.loadCollectionURL, options);
  },

  showLoadingText: function(text) {
    this._controls.editor.disabled = true;
    var tempOption = this._controls.editor.firstChild;
    if (!tempOption) {
      tempOption = document.createElement('option');
      tempOption.value = '';
      this._controls.editor.appendChild(tempOption);
      tempOption.selected = true;
    }
    tempOption.update((text || '').stripScripts().stripTags());
  },

  checkForExternalText: function() {
    this._text = this.getText();
    if (this.options.loadTextURL)
      this.loadExternalText();
    else
      this.buildOptionList();
  },

  loadExternalText: function() {
    this.showLoadingText(this.options.loadingText);
    var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
    Object.extend(options, {
      parameters: 'editorId=' + encodeURIComponent(this.element.id),
      onComplete: Prototype.emptyFunction,
      onSuccess: function(transport) {
        this._text = transport.responseText.strip();
        this.buildOptionList();
      }.bind(this),
      onFailure: this.onFailure
    });
    new Ajax.Request(this.options.loadTextURL, options);
  },

  buildOptionList: function() {
    this._form.removeClassName(this.options.loadingClassName);
    this._collection = this._collection.map(function(entry) {
      return 2 === entry.length ? entry : [entry, entry].flatten();
    });
    var marker = ('value' in this.options) ? this.options.value : this._text;
    var textFound = this._collection.any(function(entry) {
      return entry[0] == marker;
    }.bind(this));
    this._controls.editor.update('');
    var option;
    this._collection.each(function(entry, index) {
      option = document.createElement('option');
      option.value = entry[0];
      option.selected = textFound ? entry[0] == marker : 0 == index;
      option.appendChild(document.createTextNode(entry[1]));
      this._controls.editor.appendChild(option);
    }.bind(this));
    this._controls.editor.disabled = false;
    Field.scrollFreeActivate(this._controls.editor);
  }
});

//**** DEPRECATION LAYER FOR InPlace[Collection]Editor! ****
//**** This only  exists for a while,  in order to  let ****
//**** users adapt to  the new API.  Read up on the new ****
//**** API and convert your code to it ASAP!            ****

Ajax.InPlaceEditor.prototype.initialize.dealWithDeprecatedOptions = function(options) {
  if (!options) return;
  function fallback(name, expr) {
    if (name in options || expr === undefined) return;
    options[name] = expr;
  };
  fallback('cancelControl', (options.cancelLink ? 'link' : (options.cancelButton ? 'button' :
    options.cancelLink == options.cancelButton == false ? false : undefined)));
  fallback('okControl', (options.okLink ? 'link' : (options.okButton ? 'button' :
    options.okLink == options.okButton == false ? false : undefined)));
  fallback('highlightColor', options.highlightcolor);
  fallback('highlightEndColor', options.highlightendcolor);
};

Object.extend(Ajax.InPlaceEditor, {
  DefaultOptions: {
    ajaxOptions: { },
    autoRows: 3,                                // Use when multi-line w/ rows == 1
    cancelControl: 'link',                      // 'link'|'button'|false
    cancelText: 'cancel',
    clickToEditText: 'Click to edit',
    externalControl: null,                      // id|elt
    externalControlOnly: false,
    fieldPostCreation: 'activate',              // 'activate'|'focus'|false
    formClassName: 'inplaceeditor-form',
    formId: null,                               // id|elt
    highlightColor: '#ffff99',
    highlightEndColor: '#ffffff',
    hoverClassName: '',
    htmlResponse: true,
    loadingClassName: 'inplaceeditor-loading',
    loadingText: 'Loading...',
    okControl: 'button',                        // 'link'|'button'|false
    okText: 'ok',
    paramName: 'value',
    rows: 1,                                    // If 1 and multi-line, uses autoRows
    savingClassName: 'inplaceeditor-saving',
    savingText: 'Saving...',
    size: 0,
    stripLoadedTextTags: false,
    submitOnBlur: false,
    textAfterControls: '',
    textBeforeControls: '',
    textBetweenControls: ''
  },
  DefaultCallbacks: {
    callback: function(form) {
      return Form.serialize(form);
    },
    onComplete: function(transport, element) {
      // For backward compatibility, this one is bound to the IPE, and passes
      // the element directly.  It was too often customized, so we don't break it.
      new Effect.Highlight(element, {
        startcolor: this.options.highlightColor, keepBackgroundImage: true });
    },
    onEnterEditMode: null,
    onEnterHover: function(ipe) {
      ipe.element.style.backgroundColor = ipe.options.highlightColor;
      if (ipe._effect)
        ipe._effect.cancel();
    },
    onFailure: function(transport, ipe) {
      alert('Error communication with the server: ' + transport.responseText.stripTags());
    },
    onFormCustomization: null, // Takes the IPE and its generated form, after editor, before controls.
    onLeaveEditMode: null,
    onLeaveHover: function(ipe) {
      ipe._effect = new Effect.Highlight(ipe.element, {
        startcolor: ipe.options.highlightColor, endcolor: ipe.options.highlightEndColor,
        restorecolor: ipe._originalBackground, keepBackgroundImage: true
      });
    }
  },
  Listeners: {
    click: 'enterEditMode',
    keydown: 'checkForEscapeOrReturn',
    mouseover: 'enterHover',
    mouseout: 'leaveHover'
  }
});

Ajax.InPlaceCollectionEditor.DefaultOptions = {
  loadingCollectionText: 'Loading options...'
};

// Delayed observer, like Form.Element.Observer,
// but waits for delay after last key input
// Ideal for live-search fields

Form.Element.DelayedObserver = Class.create({
  initialize: function(element, delay, callback) {
    this.delay     = delay || 0.5;
    this.element   = $(element);
    this.callback  = callback;
    this.timer     = null;
    this.lastValue = $F(this.element);
    Event.observe(this.element,'keyup',this.delayedListener.bindAsEventListener(this));
  },
  delayedListener: function(event) {
    if(this.lastValue == $F(this.element)) return;
    if(this.timer) clearTimeout(this.timer);
    this.timer = setTimeout(this.onTimerEvent.bind(this), this.delay * 1000);
    this.lastValue = $F(this.element);
  },
  onTimerEvent: function() {
    this.timer = null;
    this.callback(this.element, $F(this.element));
  }
});
// script.aculo.us dragdrop.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

// Copyright (c) 2005-2008 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//           (c) 2005-2008 Sammi Williams (http://www.oriontransfer.co.nz, sammi@oriontransfer.co.nz)
//
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

if(Object.isUndefined(Effect))
  throw("dragdrop.js requires including script.aculo.us' effects.js library");

var Droppables = {
  drops: [],

  remove: function(element) {
    this.drops = this.drops.reject(function(d) { return d.element==$(element) });
  },

  add: function(element) {
    element = $(element);
    var options = Object.extend({
      greedy:     true,
      hoverclass: null,
      tree:       false
    }, arguments[1] || { });

    // cache containers
    if(options.containment) {
      options._containers = [];
      var containment = options.containment;
      if(Object.isArray(containment)) {
        containment.each( function(c) { options._containers.push($(c)) });
      } else {
        options._containers.push($(containment));
      }
    }

    if(options.accept) options.accept = [options.accept].flatten();

    Element.makePositioned(element); // fix IE
    options.element = element;

    this.drops.push(options);
  },

  findDeepestChild: function(drops) {
    deepest = drops[0];

    for (i = 1; i < drops.length; ++i)
      if (Element.isParent(drops[i].element, deepest.element))
        deepest = drops[i];

    return deepest;
  },

  isContained: function(element, drop) {
    var containmentNode;
    if(drop.tree) {
      containmentNode = element.treeNode;
    } else {
      containmentNode = element.parentNode;
    }
    return drop._containers.detect(function(c) { return containmentNode == c });
  },

  isAffected: function(point, element, drop) {
    return (
      (drop.element!=element) &&
      ((!drop._containers) ||
        this.isContained(element, drop)) &&
      ((!drop.accept) ||
        (Element.classNames(element).detect(
          function(v) { return drop.accept.include(v) } ) )) &&
      Position.within(drop.element, point[0], point[1]) );
  },

  deactivate: function(drop) {
    if(drop.hoverclass)
      Element.removeClassName(drop.element, drop.hoverclass);
    this.last_active = null;
  },

  activate: function(drop) {
    if(drop.hoverclass)
      Element.addClassName(drop.element, drop.hoverclass);
    this.last_active = drop;
  },

  show: function(point, element) {
    if(!this.drops.length) return;
    var drop, affected = [];

    this.drops.each( function(drop) {
      if(Droppables.isAffected(point, element, drop))
        affected.push(drop);
    });

    if(affected.length>0)
      drop = Droppables.findDeepestChild(affected);

    if(this.last_active && this.last_active != drop) this.deactivate(this.last_active);
    if (drop) {
      Position.within(drop.element, point[0], point[1]);
      if(drop.onHover)
        drop.onHover(element, drop.element, Position.overlap(drop.overlap, drop.element));

      if (drop != this.last_active) Droppables.activate(drop);
    }
  },

  fire: function(event, element) {
    if(!this.last_active) return;
    Position.prepare();

    if (this.isAffected([Event.pointerX(event), Event.pointerY(event)], element, this.last_active))
      if (this.last_active.onDrop) {
        this.last_active.onDrop(element, this.last_active.element, event);
        return true;
      }
  },

  reset: function() {
    if(this.last_active)
      this.deactivate(this.last_active);
  }
};

var Draggables = {
  drags: [],
  observers: [],

  register: function(draggable) {
    if(this.drags.length == 0) {
      this.eventMouseUp   = this.endDrag.bindAsEventListener(this);
      this.eventMouseMove = this.updateDrag.bindAsEventListener(this);
      this.eventKeypress  = this.keyPress.bindAsEventListener(this);

      Event.observe(document, "mouseup", this.eventMouseUp);
      Event.observe(document, "mousemove", this.eventMouseMove);
      Event.observe(document, "keypress", this.eventKeypress);
    }
    this.drags.push(draggable);
  },

  unregister: function(draggable) {
    this.drags = this.drags.reject(function(d) { return d==draggable });
    if(this.drags.length == 0) {
      Event.stopObserving(document, "mouseup", this.eventMouseUp);
      Event.stopObserving(document, "mousemove", this.eventMouseMove);
      Event.stopObserving(document, "keypress", this.eventKeypress);
    }
  },

  activate: function(draggable) {
    if(draggable.options.delay) {
      this._timeout = setTimeout(function() {
        Draggables._timeout = null;
        window.focus();
        Draggables.activeDraggable = draggable;
      }.bind(this), draggable.options.delay);
    } else {
      window.focus(); // allows keypress events if window isn't currently focused, fails for Safari
      this.activeDraggable = draggable;
    }
  },

  deactivate: function() {
    this.activeDraggable = null;
  },

  updateDrag: function(event) {
    if(!this.activeDraggable) return;
    var pointer = [Event.pointerX(event), Event.pointerY(event)];
    // Mozilla-based browsers fire successive mousemove events with
    // the same coordinates, prevent needless redrawing (moz bug?)
    if(this._lastPointer && (this._lastPointer.inspect() == pointer.inspect())) return;
    this._lastPointer = pointer;

    this.activeDraggable.updateDrag(event, pointer);
  },

  endDrag: function(event) {
    if(this._timeout) {
      clearTimeout(this._timeout);
      this._timeout = null;
    }
    if(!this.activeDraggable) return;
    this._lastPointer = null;
    this.activeDraggable.endDrag(event);
    this.activeDraggable = null;
  },

  keyPress: function(event) {
    if(this.activeDraggable)
      this.activeDraggable.keyPress(event);
  },

  addObserver: function(observer) {
    this.observers.push(observer);
    this._cacheObserverCallbacks();
  },

  removeObserver: function(element) {  // element instead of observer fixes mem leaks
    this.observers = this.observers.reject( function(o) { return o.element==element });
    this._cacheObserverCallbacks();
  },

  notify: function(eventName, draggable, event) {  // 'onStart', 'onEnd', 'onDrag'
    if(this[eventName+'Count'] > 0)
      this.observers.each( function(o) {
        if(o[eventName]) o[eventName](eventName, draggable, event);
      });
    if(draggable.options[eventName]) draggable.options[eventName](draggable, event);
  },

  _cacheObserverCallbacks: function() {
    ['onStart','onEnd','onDrag'].each( function(eventName) {
      Draggables[eventName+'Count'] = Draggables.observers.select(
        function(o) { return o[eventName]; }
      ).length;
    });
  }
};

/*--------------------------------------------------------------------------*/

var Draggable = Class.create({
  initialize: function(element) {
    var defaults = {
      handle: false,
      reverteffect: function(element, top_offset, left_offset) {
        var dur = Math.sqrt(Math.abs(top_offset^2)+Math.abs(left_offset^2))*0.02;
        new Effect.Move(element, { x: -left_offset, y: -top_offset, duration: dur,
          queue: {scope:'_draggable', position:'end'}
        });
      },
      endeffect: function(element) {
        var toOpacity = Object.isNumber(element._opacity) ? element._opacity : 1.0;
        new Effect.Opacity(element, {duration:0.2, from:0.7, to:toOpacity,
          queue: {scope:'_draggable', position:'end'},
          afterFinish: function(){
            Draggable._dragging[element] = false
          }
        });
      },
      zindex: 1000,
      revert: false,
      quiet: false,
      scroll: false,
      scrollSensitivity: 20,
      scrollSpeed: 15,
      snap: false,  // false, or xy or [x,y] or function(x,y){ return [x,y] }
      delay: 0
    };

    if(!arguments[1] || Object.isUndefined(arguments[1].endeffect))
      Object.extend(defaults, {
        starteffect: function(element) {
          element._opacity = Element.getOpacity(element);
          Draggable._dragging[element] = true;
          new Effect.Opacity(element, {duration:0.2, from:element._opacity, to:0.7});
        }
      });

    var options = Object.extend(defaults, arguments[1] || { });

    this.element = $(element);

    if(options.handle && Object.isString(options.handle))
      this.handle = this.element.down('.'+options.handle, 0);

    if(!this.handle) this.handle = $(options.handle);
    if(!this.handle) this.handle = this.element;

    if(options.scroll && !options.scroll.scrollTo && !options.scroll.outerHTML) {
      options.scroll = $(options.scroll);
      this._isScrollChild = Element.childOf(this.element, options.scroll);
    }

    Element.makePositioned(this.element); // fix IE

    this.options  = options;
    this.dragging = false;

    this.eventMouseDown = this.initDrag.bindAsEventListener(this);
    Event.observe(this.handle, "mousedown", this.eventMouseDown);

    Draggables.register(this);
  },

  destroy: function() {
    Event.stopObserving(this.handle, "mousedown", this.eventMouseDown);
    Draggables.unregister(this);
  },

  currentDelta: function() {
    return([
      parseInt(Element.getStyle(this.element,'left') || '0'),
      parseInt(Element.getStyle(this.element,'top') || '0')]);
  },

  initDrag: function(event) {
    if(!Object.isUndefined(Draggable._dragging[this.element]) &&
      Draggable._dragging[this.element]) return;
    if(Event.isLeftClick(event)) {
      // abort on form elements, fixes a Firefox issue
      var src = Event.element(event);
      if((tag_name = src.tagName.toUpperCase()) && (
        tag_name=='INPUT' ||
        tag_name=='SELECT' ||
        tag_name=='OPTION' ||
        tag_name=='BUTTON' ||
        tag_name=='TEXTAREA')) return;

      var pointer = [Event.pointerX(event), Event.pointerY(event)];
      var pos     = Position.cumulativeOffset(this.element);
      this.offset = [0,1].map( function(i) { return (pointer[i] - pos[i]) });

      Draggables.activate(this);
      Event.stop(event);
    }
  },

  startDrag: function(event) {
    this.dragging = true;
    if(!this.delta)
      this.delta = this.currentDelta();

    if(this.options.zindex) {
      this.originalZ = parseInt(Element.getStyle(this.element,'z-index') || 0);
      this.element.style.zIndex = this.options.zindex;
    }

    if(this.options.ghosting) {
      this._clone = this.element.cloneNode(true);
      this._originallyAbsolute = (this.element.getStyle('position') == 'absolute');
      if (!this._originallyAbsolute)
        Position.absolutize(this.element);
      this.element.parentNode.insertBefore(this._clone, this.element);
    }

    if(this.options.scroll) {
      if (this.options.scroll == window) {
        var where = this._getWindowScroll(this.options.scroll);
        this.originalScrollLeft = where.left;
        this.originalScrollTop = where.top;
      } else {
        this.originalScrollLeft = this.options.scroll.scrollLeft;
        this.originalScrollTop = this.options.scroll.scrollTop;
      }
    }

    Draggables.notify('onStart', this, event);

    if(this.options.starteffect) this.options.starteffect(this.element);
  },

  updateDrag: function(event, pointer) {
    if(!this.dragging) this.startDrag(event);

    if(!this.options.quiet){
      Position.prepare();
      Droppables.show(pointer, this.element);
    }

    Draggables.notify('onDrag', this, event);

    this.draw(pointer);
    if(this.options.change) this.options.change(this);

    if(this.options.scroll) {
      this.stopScrolling();

      var p;
      if (this.options.scroll == window) {
        with(this._getWindowScroll(this.options.scroll)) { p = [ left, top, left+width, top+height ]; }
      } else {
        p = Position.page(this.options.scroll);
        p[0] += this.options.scroll.scrollLeft + Position.deltaX;
        p[1] += this.options.scroll.scrollTop + Position.deltaY;
        p.push(p[0]+this.options.scroll.offsetWidth);
        p.push(p[1]+this.options.scroll.offsetHeight);
      }
      var speed = [0,0];
      if(pointer[0] < (p[0]+this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[0]+this.options.scrollSensitivity);
      if(pointer[1] < (p[1]+this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[1]+this.options.scrollSensitivity);
      if(pointer[0] > (p[2]-this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[2]-this.options.scrollSensitivity);
      if(pointer[1] > (p[3]-this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[3]-this.options.scrollSensitivity);
      this.startScrolling(speed);
    }

    // fix AppleWebKit rendering
    if(Prototype.Browser.WebKit) window.scrollBy(0,0);

    Event.stop(event);
  },

  finishDrag: function(event, success) {
    this.dragging = false;

    if(this.options.quiet){
      Position.prepare();
      var pointer = [Event.pointerX(event), Event.pointerY(event)];
      Droppables.show(pointer, this.element);
    }

    if(this.options.ghosting) {
      if (!this._originallyAbsolute)
        Position.relativize(this.element);
      delete this._originallyAbsolute;
      Element.remove(this._clone);
      this._clone = null;
    }

    var dropped = false;
    if(success) {
      dropped = Droppables.fire(event, this.element);
      if (!dropped) dropped = false;
    }
    if(dropped && this.options.onDropped) this.options.onDropped(this.element);
    Draggables.notify('onEnd', this, event);

    var revert = this.options.revert;
    if(revert && Object.isFunction(revert)) revert = revert(this.element);

    var d = this.currentDelta();
    if(revert && this.options.reverteffect) {
      if (dropped == 0 || revert != 'failure')
        this.options.reverteffect(this.element,
          d[1]-this.delta[1], d[0]-this.delta[0]);
    } else {
      this.delta = d;
    }

    if(this.options.zindex)
      this.element.style.zIndex = this.originalZ;

    if(this.options.endeffect)
      this.options.endeffect(this.element);

    Draggables.deactivate(this);
    Droppables.reset();
  },

  keyPress: function(event) {
    if(event.keyCode!=Event.KEY_ESC) return;
    this.finishDrag(event, false);
    Event.stop(event);
  },

  endDrag: function(event) {
    if(!this.dragging) return;
    this.stopScrolling();
    this.finishDrag(event, true);
    Event.stop(event);
  },

  draw: function(point) {
    var pos = Position.cumulativeOffset(this.element);
    if(this.options.ghosting) {
      var r   = Position.realOffset(this.element);
      pos[0] += r[0] - Position.deltaX; pos[1] += r[1] - Position.deltaY;
    }

    var d = this.currentDelta();
    pos[0] -= d[0]; pos[1] -= d[1];

    if(this.options.scroll && (this.options.scroll != window && this._isScrollChild)) {
      pos[0] -= this.options.scroll.scrollLeft-this.originalScrollLeft;
      pos[1] -= this.options.scroll.scrollTop-this.originalScrollTop;
    }

    var p = [0,1].map(function(i){
      return (point[i]-pos[i]-this.offset[i])
    }.bind(this));

    if(this.options.snap) {
      if(Object.isFunction(this.options.snap)) {
        p = this.options.snap(p[0],p[1],this);
      } else {
      if(Object.isArray(this.options.snap)) {
        p = p.map( function(v, i) {
          return (v/this.options.snap[i]).round()*this.options.snap[i] }.bind(this));
      } else {
        p = p.map( function(v) {
          return (v/this.options.snap).round()*this.options.snap }.bind(this));
      }
    }}

    var style = this.element.style;
    if((!this.options.constraint) || (this.options.constraint=='horizontal'))
      style.left = p[0] + "px";
    if((!this.options.constraint) || (this.options.constraint=='vertical'))
      style.top  = p[1] + "px";

    if(style.visibility=="hidden") style.visibility = ""; // fix gecko rendering
  },

  stopScrolling: function() {
    if(this.scrollInterval) {
      clearInterval(this.scrollInterval);
      this.scrollInterval = null;
      Draggables._lastScrollPointer = null;
    }
  },

  startScrolling: function(speed) {
    if(!(speed[0] || speed[1])) return;
    this.scrollSpeed = [speed[0]*this.options.scrollSpeed,speed[1]*this.options.scrollSpeed];
    this.lastScrolled = new Date();
    this.scrollInterval = setInterval(this.scroll.bind(this), 10);
  },

  scroll: function() {
    var current = new Date();
    var delta = current - this.lastScrolled;
    this.lastScrolled = current;
    if(this.options.scroll == window) {
      with (this._getWindowScroll(this.options.scroll)) {
        if (this.scrollSpeed[0] || this.scrollSpeed[1]) {
          var d = delta / 1000;
          this.options.scroll.scrollTo( left + d*this.scrollSpeed[0], top + d*this.scrollSpeed[1] );
        }
      }
    } else {
      this.options.scroll.scrollLeft += this.scrollSpeed[0] * delta / 1000;
      this.options.scroll.scrollTop  += this.scrollSpeed[1] * delta / 1000;
    }

    Position.prepare();
    Droppables.show(Draggables._lastPointer, this.element);
    Draggables.notify('onDrag', this);
    if (this._isScrollChild) {
      Draggables._lastScrollPointer = Draggables._lastScrollPointer || $A(Draggables._lastPointer);
      Draggables._lastScrollPointer[0] += this.scrollSpeed[0] * delta / 1000;
      Draggables._lastScrollPointer[1] += this.scrollSpeed[1] * delta / 1000;
      if (Draggables._lastScrollPointer[0] < 0)
        Draggables._lastScrollPointer[0] = 0;
      if (Draggables._lastScrollPointer[1] < 0)
        Draggables._lastScrollPointer[1] = 0;
      this.draw(Draggables._lastScrollPointer);
    }

    if(this.options.change) this.options.change(this);
  },

  _getWindowScroll: function(w) {
    var T, L, W, H;
    with (w.document) {
      if (w.document.documentElement && documentElement.scrollTop) {
        T = documentElement.scrollTop;
        L = documentElement.scrollLeft;
      } else if (w.document.body) {
        T = body.scrollTop;
        L = body.scrollLeft;
      }
      if (w.innerWidth) {
        W = w.innerWidth;
        H = w.innerHeight;
      } else if (w.document.documentElement && documentElement.clientWidth) {
        W = documentElement.clientWidth;
        H = documentElement.clientHeight;
      } else {
        W = body.offsetWidth;
        H = body.offsetHeight;
      }
    }
    return { top: T, left: L, width: W, height: H };
  }
});

Draggable._dragging = { };

/*--------------------------------------------------------------------------*/

var SortableObserver = Class.create({
  initialize: function(element, observer) {
    this.element   = $(element);
    this.observer  = observer;
    this.lastValue = Sortable.serialize(this.element);
  },

  onStart: function() {
    this.lastValue = Sortable.serialize(this.element);
  },

  onEnd: function() {
    Sortable.unmark();
    if(this.lastValue != Sortable.serialize(this.element))
      this.observer(this.element)
  }
});

var Sortable = {
  SERIALIZE_RULE: /^[^_\-](?:[A-Za-z0-9\-\_]*)[_](.*)$/,

  sortables: { },

  _findRootElement: function(element) {
    while (element.tagName.toUpperCase() != "BODY") {
      if(element.id && Sortable.sortables[element.id]) return element;
      element = element.parentNode;
    }
  },

  options: function(element) {
    element = Sortable._findRootElement($(element));
    if(!element) return;
    return Sortable.sortables[element.id];
  },

  destroy: function(element){
    element = $(element);
    var s = Sortable.sortables[element.id];

    if(s) {
      Draggables.removeObserver(s.element);
      s.droppables.each(function(d){ Droppables.remove(d) });
      s.draggables.invoke('destroy');

      delete Sortable.sortables[s.element.id];
    }
  },

  create: function(element) {
    element = $(element);
    var options = Object.extend({
      element:     element,
      tag:         'li',       // assumes li children, override with tag: 'tagname'
      dropOnEmpty: false,
      tree:        false,
      treeTag:     'ul',
      overlap:     'vertical', // one of 'vertical', 'horizontal'
      constraint:  'vertical', // one of 'vertical', 'horizontal', false
      containment: element,    // also takes array of elements (or id's); or false
      handle:      false,      // or a CSS class
      only:        false,
      delay:       0,
      hoverclass:  null,
      ghosting:    false,
      quiet:       false,
      scroll:      false,
      scrollSensitivity: 20,
      scrollSpeed: 15,
      format:      this.SERIALIZE_RULE,

      // these take arrays of elements or ids and can be
      // used for better initialization performance
      elements:    false,
      handles:     false,

      onChange:    Prototype.emptyFunction,
      onUpdate:    Prototype.emptyFunction
    }, arguments[1] || { });

    // clear any old sortable with same element
    this.destroy(element);

    // build options for the draggables
    var options_for_draggable = {
      revert:      true,
      quiet:       options.quiet,
      scroll:      options.scroll,
      scrollSpeed: options.scrollSpeed,
      scrollSensitivity: options.scrollSensitivity,
      delay:       options.delay,
      ghosting:    options.ghosting,
      constraint:  options.constraint,
      handle:      options.handle };

    if(options.starteffect)
      options_for_draggable.starteffect = options.starteffect;

    if(options.reverteffect)
      options_for_draggable.reverteffect = options.reverteffect;
    else
      if(options.ghosting) options_for_draggable.reverteffect = function(element) {
        element.style.top  = 0;
        element.style.left = 0;
      };

    if(options.endeffect)
      options_for_draggable.endeffect = options.endeffect;

    if(options.zindex)
      options_for_draggable.zindex = options.zindex;

    // build options for the droppables
    var options_for_droppable = {
      overlap:     options.overlap,
      containment: options.containment,
      tree:        options.tree,
      hoverclass:  options.hoverclass,
      onHover:     Sortable.onHover
    };

    var options_for_tree = {
      onHover:      Sortable.onEmptyHover,
      overlap:      options.overlap,
      containment:  options.containment,
      hoverclass:   options.hoverclass
    };

    // fix for gecko engine
    Element.cleanWhitespace(element);

    options.draggables = [];
    options.droppables = [];

    // drop on empty handling
    if(options.dropOnEmpty || options.tree) {
      Droppables.add(element, options_for_tree);
      options.droppables.push(element);
    }

    (options.elements || this.findElements(element, options) || []).each( function(e,i) {
      var handle = options.handles ? $(options.handles[i]) :
        (options.handle ? $(e).select('.' + options.handle)[0] : e);
      options.draggables.push(
        new Draggable(e, Object.extend(options_for_draggable, { handle: handle })));
      Droppables.add(e, options_for_droppable);
      if(options.tree) e.treeNode = element;
      options.droppables.push(e);
    });

    if(options.tree) {
      (Sortable.findTreeElements(element, options) || []).each( function(e) {
        Droppables.add(e, options_for_tree);
        e.treeNode = element;
        options.droppables.push(e);
      });
    }

    // keep reference
    this.sortables[element.id] = options;

    // for onupdate
    Draggables.addObserver(new SortableObserver(element, options.onUpdate));

  },

  // return all suitable-for-sortable elements in a guaranteed order
  findElements: function(element, options) {
    return Element.findChildren(
      element, options.only, options.tree ? true : false, options.tag);
  },

  findTreeElements: function(element, options) {
    return Element.findChildren(
      element, options.only, options.tree ? true : false, options.treeTag);
  },

  onHover: function(element, dropon, overlap) {
    if(Element.isParent(dropon, element)) return;

    if(overlap > .33 && overlap < .66 && Sortable.options(dropon).tree) {
      return;
    } else if(overlap>0.5) {
      Sortable.mark(dropon, 'before');
      if(dropon.previousSibling != element) {
        var oldParentNode = element.parentNode;
        element.style.visibility = "hidden"; // fix gecko rendering
        dropon.parentNode.insertBefore(element, dropon);
        if(dropon.parentNode!=oldParentNode)
          Sortable.options(oldParentNode).onChange(element);
        Sortable.options(dropon.parentNode).onChange(element);
      }
    } else {
      Sortable.mark(dropon, 'after');
      var nextElement = dropon.nextSibling || null;
      if(nextElement != element) {
        var oldParentNode = element.parentNode;
        element.style.visibility = "hidden"; // fix gecko rendering
        dropon.parentNode.insertBefore(element, nextElement);
        if(dropon.parentNode!=oldParentNode)
          Sortable.options(oldParentNode).onChange(element);
        Sortable.options(dropon.parentNode).onChange(element);
      }
    }
  },

  onEmptyHover: function(element, dropon, overlap) {
    var oldParentNode = element.parentNode;
    var droponOptions = Sortable.options(dropon);

    if(!Element.isParent(dropon, element)) {
      var index;

      var children = Sortable.findElements(dropon, {tag: droponOptions.tag, only: droponOptions.only});
      var child = null;

      if(children) {
        var offset = Element.offsetSize(dropon, droponOptions.overlap) * (1.0 - overlap);

        for (index = 0; index < children.length; index += 1) {
          if (offset - Element.offsetSize (children[index], droponOptions.overlap) >= 0) {
            offset -= Element.offsetSize (children[index], droponOptions.overlap);
          } else if (offset - (Element.offsetSize (children[index], droponOptions.overlap) / 2) >= 0) {
            child = index + 1 < children.length ? children[index + 1] : null;
            break;
          } else {
            child = children[index];
            break;
          }
        }
      }

      dropon.insertBefore(element, child);

      Sortable.options(oldParentNode).onChange(element);
      droponOptions.onChange(element);
    }
  },

  unmark: function() {
    if(Sortable._marker) Sortable._marker.hide();
  },

  mark: function(dropon, position) {
    // mark on ghosting only
    var sortable = Sortable.options(dropon.parentNode);
    if(sortable && !sortable.ghosting) return;

    if(!Sortable._marker) {
      Sortable._marker =
        ($('dropmarker') || Element.extend(document.createElement('DIV'))).
          hide().addClassName('dropmarker').setStyle({position:'absolute'});
      document.getElementsByTagName("body").item(0).appendChild(Sortable._marker);
    }
    var offsets = Position.cumulativeOffset(dropon);
    Sortable._marker.setStyle({left: offsets[0]+'px', top: offsets[1] + 'px'});

    if(position=='after')
      if(sortable.overlap == 'horizontal')
        Sortable._marker.setStyle({left: (offsets[0]+dropon.clientWidth) + 'px'});
      else
        Sortable._marker.setStyle({top: (offsets[1]+dropon.clientHeight) + 'px'});

    Sortable._marker.show();
  },

  _tree: function(element, options, parent) {
    var children = Sortable.findElements(element, options) || [];

    for (var i = 0; i < children.length; ++i) {
      var match = children[i].id.match(options.format);

      if (!match) continue;

      var child = {
        id: encodeURIComponent(match ? match[1] : null),
        element: element,
        parent: parent,
        children: [],
        position: parent.children.length,
        container: $(children[i]).down(options.treeTag)
      };

      /* Get the element containing the children and recurse over it */
      if (child.container)
        this._tree(child.container, options, child);

      parent.children.push (child);
    }

    return parent;
  },

  tree: function(element) {
    element = $(element);
    var sortableOptions = this.options(element);
    var options = Object.extend({
      tag: sortableOptions.tag,
      treeTag: sortableOptions.treeTag,
      only: sortableOptions.only,
      name: element.id,
      format: sortableOptions.format
    }, arguments[1] || { });

    var root = {
      id: null,
      parent: null,
      children: [],
      container: element,
      position: 0
    };

    return Sortable._tree(element, options, root);
  },

  /* Construct a [i] index for a particular node */
  _constructIndex: function(node) {
    var index = '';
    do {
      if (node.id) index = '[' + node.position + ']' + index;
    } while ((node = node.parent) != null);
    return index;
  },

  sequence: function(element) {
    element = $(element);
    var options = Object.extend(this.options(element), arguments[1] || { });

    return $(this.findElements(element, options) || []).map( function(item) {
      return item.id.match(options.format) ? item.id.match(options.format)[1] : '';
    });
  },

  setSequence: function(element, new_sequence) {
    element = $(element);
    var options = Object.extend(this.options(element), arguments[2] || { });

    var nodeMap = { };
    this.findElements(element, options).each( function(n) {
        if (n.id.match(options.format))
            nodeMap[n.id.match(options.format)[1]] = [n, n.parentNode];
        n.parentNode.removeChild(n);
    });

    new_sequence.each(function(ident) {
      var n = nodeMap[ident];
      if (n) {
        n[1].appendChild(n[0]);
        delete nodeMap[ident];
      }
    });
  },

  serialize: function(element) {
    element = $(element);
    var options = Object.extend(Sortable.options(element), arguments[1] || { });
    var name = encodeURIComponent(
      (arguments[1] && arguments[1].name) ? arguments[1].name : element.id);

    if (options.tree) {
      return Sortable.tree(element, arguments[1]).children.map( function (item) {
        return [name + Sortable._constructIndex(item) + "[id]=" +
                encodeURIComponent(item.id)].concat(item.children.map(arguments.callee));
      }).flatten().join('&');
    } else {
      return Sortable.sequence(element, arguments[1]).map( function(item) {
        return name + "[]=" + encodeURIComponent(item);
      }).join('&');
    }
  }
};

// Returns true if child is contained within element
Element.isParent = function(child, element) {
  if (!child.parentNode || child == element) return false;
  if (child.parentNode == element) return true;
  return Element.isParent(child.parentNode, element);
};

Element.findChildren = function(element, only, recursive, tagName) {
  if(!element.hasChildNodes()) return null;
  tagName = tagName.toUpperCase();
  if(only) only = [only].flatten();
  var elements = [];
  $A(element.childNodes).each( function(e) {
    if(e.tagName && e.tagName.toUpperCase()==tagName &&
      (!only || (Element.classNames(e).detect(function(v) { return only.include(v) }))))
        elements.push(e);
    if(recursive) {
      var grandchildren = Element.findChildren(e, only, recursive, tagName);
      if(grandchildren) elements.push(grandchildren);
    }
  });

  return (elements.length>0 ? elements.flatten() : []);
};

Element.offsetSize = function (element, type) {
  return element['offset' + ((type=='vertical' || type=='height') ? 'Height' : 'Width')];
};
// script.aculo.us slider.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

// Copyright (c) 2005-2008 Marty Haught, Thomas Fuchs
//
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

if (!Control) var Control = { };

// options:
//  axis: 'vertical', or 'horizontal' (default)
//
// callbacks:
//  onChange(value)
//  onSlide(value)
Control.Slider = Class.create({
  initialize: function(handle, track, options) {
    var slider = this;

    if (Object.isArray(handle)) {
      this.handles = handle.collect( function(e) { return $(e) });
    } else {
      this.handles = [$(handle)];
    }

    this.track   = $(track);
    this.options = options || { };

    this.axis      = this.options.axis || 'horizontal';
    this.increment = this.options.increment || 1;
    this.step      = parseInt(this.options.step || '1');
    this.range     = this.options.range || $R(0,1);

    this.value     = 0; // assure backwards compat
    this.values    = this.handles.map( function() { return 0 });
    this.spans     = this.options.spans ? this.options.spans.map(function(s){ return $(s) }) : false;
    this.options.startSpan = $(this.options.startSpan || null);
    this.options.endSpan   = $(this.options.endSpan || null);

    this.restricted = this.options.restricted || false;

    this.maximum   = this.options.maximum || this.range.end;
    this.minimum   = this.options.minimum || this.range.start;

    // Will be used to align the handle onto the track, if necessary
    this.alignX = parseInt(this.options.alignX || '0');
    this.alignY = parseInt(this.options.alignY || '0');

    this.trackLength = this.maximumOffset() - this.minimumOffset();

    this.handleLength = this.isVertical() ?
      (this.handles[0].offsetHeight != 0 ?
        this.handles[0].offsetHeight : this.handles[0].style.height.replace(/px$/,"")) :
      (this.handles[0].offsetWidth != 0 ? this.handles[0].offsetWidth :
        this.handles[0].style.width.replace(/px$/,""));

    this.active   = false;
    this.dragging = false;
    this.disabled = false;

    if (this.options.disabled) this.setDisabled();

    // Allowed values array
    this.allowedValues = this.options.values ? this.options.values.sortBy(Prototype.K) : false;
    if (this.allowedValues) {
      this.minimum = this.allowedValues.min();
      this.maximum = this.allowedValues.max();
    }

    this.eventMouseDown = this.startDrag.bindAsEventListener(this);
    this.eventMouseUp   = this.endDrag.bindAsEventListener(this);
    this.eventMouseMove = this.update.bindAsEventListener(this);

    // Initialize handles in reverse (make sure first handle is active)
    this.handles.each( function(h,i) {
      i = slider.handles.length-1-i;
      slider.setValue(parseFloat(
        (Object.isArray(slider.options.sliderValue) ?
          slider.options.sliderValue[i] : slider.options.sliderValue) ||
         slider.range.start), i);
      h.makePositioned().observe("mousedown", slider.eventMouseDown);
    });

    this.track.observe("mousedown", this.eventMouseDown);
    document.observe("mouseup", this.eventMouseUp);
    document.observe("mousemove", this.eventMouseMove);

    this.initialized = true;
  },
  dispose: function() {
    var slider = this;
    Event.stopObserving(this.track, "mousedown", this.eventMouseDown);
    Event.stopObserving(document, "mouseup", this.eventMouseUp);
    Event.stopObserving(document, "mousemove", this.eventMouseMove);
    this.handles.each( function(h) {
      Event.stopObserving(h, "mousedown", slider.eventMouseDown);
    });
  },
  setDisabled: function(){
    this.disabled = true;
  },
  setEnabled: function(){
    this.disabled = false;
  },
  getNearestValue: function(value){
    if (this.allowedValues){
      if (value >= this.allowedValues.max()) return(this.allowedValues.max());
      if (value <= this.allowedValues.min()) return(this.allowedValues.min());

      var offset = Math.abs(this.allowedValues[0] - value);
      var newValue = this.allowedValues[0];
      this.allowedValues.each( function(v) {
        var currentOffset = Math.abs(v - value);
        if (currentOffset <= offset){
          newValue = v;
          offset = currentOffset;
        }
      });
      return newValue;
    }
    if (value > this.range.end) return this.range.end;
    if (value < this.range.start) return this.range.start;
    return value;
  },
  setValue: function(sliderValue, handleIdx){
    if (!this.active) {
      this.activeHandleIdx = handleIdx || 0;
      this.activeHandle    = this.handles[this.activeHandleIdx];
      this.updateStyles();
    }
    handleIdx = handleIdx || this.activeHandleIdx || 0;
    if (this.initialized && this.restricted) {
      if ((handleIdx>0) && (sliderValue<this.values[handleIdx-1]))
        sliderValue = this.values[handleIdx-1];
      if ((handleIdx < (this.handles.length-1)) && (sliderValue>this.values[handleIdx+1]))
        sliderValue = this.values[handleIdx+1];
    }
    sliderValue = this.getNearestValue(sliderValue);
    this.values[handleIdx] = sliderValue;
    this.value = this.values[0]; // assure backwards compat

    this.handles[handleIdx].style[this.isVertical() ? 'top' : 'left'] =
      this.translateToPx(sliderValue);

    this.drawSpans();
    if (!this.dragging || !this.event) this.updateFinished();
  },
  setValueBy: function(delta, handleIdx) {
    this.setValue(this.values[handleIdx || this.activeHandleIdx || 0] + delta,
      handleIdx || this.activeHandleIdx || 0);
  },
  translateToPx: function(value) {
    return Math.round(
      ((this.trackLength-this.handleLength)/(this.range.end-this.range.start)) *
      (value - this.range.start)) + "px";
  },
  translateToValue: function(offset) {
    return ((offset/(this.trackLength-this.handleLength) *
      (this.range.end-this.range.start)) + this.range.start);
  },
  getRange: function(range) {
    var v = this.values.sortBy(Prototype.K);
    range = range || 0;
    return $R(v[range],v[range+1]);
  },
  minimumOffset: function(){
    return(this.isVertical() ? this.alignY : this.alignX);
  },
  maximumOffset: function(){
    return(this.isVertical() ?
      (this.track.offsetHeight != 0 ? this.track.offsetHeight :
        this.track.style.height.replace(/px$/,"")) - this.alignY :
      (this.track.offsetWidth != 0 ? this.track.offsetWidth :
        this.track.style.width.replace(/px$/,"")) - this.alignX);
  },
  isVertical:  function(){
    return (this.axis == 'vertical');
  },
  drawSpans: function() {
    var slider = this;
    if (this.spans)
      $R(0, this.spans.length-1).each(function(r) { slider.setSpan(slider.spans[r], slider.getRange(r)) });
    if (this.options.startSpan)
      this.setSpan(this.options.startSpan,
        $R(0, this.values.length>1 ? this.getRange(0).min() : this.value ));
    if (this.options.endSpan)
      this.setSpan(this.options.endSpan,
        $R(this.values.length>1 ? this.getRange(this.spans.length-1).max() : this.value, this.maximum));
  },
  setSpan: function(span, range) {
    if (this.isVertical()) {
      span.style.top = this.translateToPx(range.start);
      span.style.height = this.translateToPx(range.end - range.start + this.range.start);
    } else {
      span.style.left = this.translateToPx(range.start);
      span.style.width = this.translateToPx(range.end - range.start + this.range.start);
    }
  },
  updateStyles: function() {
    this.handles.each( function(h){ Element.removeClassName(h, 'selected') });
    Element.addClassName(this.activeHandle, 'selected');
  },
  startDrag: function(event) {
    if (Event.isLeftClick(event)) {
      if (!this.disabled){
        this.active = true;

        var handle = Event.element(event);
        var pointer  = [Event.pointerX(event), Event.pointerY(event)];
        var track = handle;
        if (track==this.track) {
          var offsets  = Position.cumulativeOffset(this.track);
          this.event = event;
          this.setValue(this.translateToValue(
           (this.isVertical() ? pointer[1]-offsets[1] : pointer[0]-offsets[0])-(this.handleLength/2)
          ));
          var offsets  = Position.cumulativeOffset(this.activeHandle);
          this.offsetX = (pointer[0] - offsets[0]);
          this.offsetY = (pointer[1] - offsets[1]);
        } else {
          // find the handle (prevents issues with Safari)
          while((this.handles.indexOf(handle) == -1) && handle.parentNode)
            handle = handle.parentNode;

          if (this.handles.indexOf(handle)!=-1) {
            this.activeHandle    = handle;
            this.activeHandleIdx = this.handles.indexOf(this.activeHandle);
            this.updateStyles();

            var offsets  = Position.cumulativeOffset(this.activeHandle);
            this.offsetX = (pointer[0] - offsets[0]);
            this.offsetY = (pointer[1] - offsets[1]);
          }
        }
      }
      Event.stop(event);
    }
  },
  update: function(event) {
   if (this.active) {
      if (!this.dragging) this.dragging = true;
      this.draw(event);
      if (Prototype.Browser.WebKit) window.scrollBy(0,0);
      Event.stop(event);
   }
  },
  draw: function(event) {
    var pointer = [Event.pointerX(event), Event.pointerY(event)];
    var offsets = Position.cumulativeOffset(this.track);
    pointer[0] -= this.offsetX + offsets[0];
    pointer[1] -= this.offsetY + offsets[1];
    this.event = event;
    this.setValue(this.translateToValue( this.isVertical() ? pointer[1] : pointer[0] ));
    if (this.initialized && this.options.onSlide)
      this.options.onSlide(this.values.length>1 ? this.values : this.value, this);
  },
  endDrag: function(event) {
    if (this.active && this.dragging) {
      this.finishDrag(event, true);
      Event.stop(event);
    }
    this.active = false;
    this.dragging = false;
  },
  finishDrag: function(event, success) {
    this.active = false;
    this.dragging = false;
    this.updateFinished();
  },
  updateFinished: function() {
    if (this.initialized && this.options.onChange)
      this.options.onChange(this.values.length>1 ? this.values : this.value, this);
    this.event = null;
  }
});
// script.aculo.us sound.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

// Copyright (c) 2005-2008 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//
// Based on code created by Jules Gravinese (http://www.webveteran.com/)
//
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

Sound = {
  tracks: {},
  _enabled: true,
  template:
    new Template('<embed style="height:0" id="sound_#{track}_#{id}" src="#{url}" loop="false" autostart="true" hidden="true"/>'),
  enable: function(){
    Sound._enabled = true;
  },
  disable: function(){
    Sound._enabled = false;
  },
  play: function(url){
    if(!Sound._enabled) return;
    var options = Object.extend({
      track: 'global', url: url, replace: false
    }, arguments[1] || {});

    if(options.replace && this.tracks[options.track]) {
      $R(0, this.tracks[options.track].id).each(function(id){
        var sound = $('sound_'+options.track+'_'+id);
        sound.Stop && sound.Stop();
        sound.remove();
      });
      this.tracks[options.track] = null;
    }

    if(!this.tracks[options.track])
      this.tracks[options.track] = { id: 0 };
    else
      this.tracks[options.track].id++;

    options.id = this.tracks[options.track].id;
    $$('body')[0].insert(
      Prototype.Browser.IE ? new Element('bgsound',{
        id: 'sound_'+options.track+'_'+options.id,
        src: options.url, loop: 1, autostart: true
      }) : Sound.template.evaluate(options));
  }
};

if(Prototype.Browser.Gecko && navigator.userAgent.indexOf("Win") > 0){
  if(navigator.plugins && $A(navigator.plugins).detect(function(p){ return p.name.indexOf('QuickTime') != -1 }))
    Sound.template = new Template('<object id="sound_#{track}_#{id}" width="0" height="0" type="audio/mpeg" data="#{url}"/>');
  else
    Sound.play = function(){};
}
// script.aculo.us unittest.js v1.8.2, Tue Nov 18 18:30:58 +0100 2008

// Copyright (c) 2005-2008 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//           (c) 2005-2008 Jon Tirsen (http://www.tirsen.com)
//           (c) 2005-2008 Michael Schuerig (http://www.schuerig.de/michael/)
//
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

// experimental, Firefox-only
Event.simulateMouse = function(element, eventName) {
  var options = Object.extend({
    pointerX: 0,
    pointerY: 0,
    buttons:  0,
    ctrlKey:  false,
    altKey:   false,
    shiftKey: false,
    metaKey:  false
  }, arguments[2] || {});
  var oEvent = document.createEvent("MouseEvents");
  oEvent.initMouseEvent(eventName, true, true, document.defaultView, 
    options.buttons, options.pointerX, options.pointerY, options.pointerX, options.pointerY, 
    options.ctrlKey, options.altKey, options.shiftKey, options.metaKey, 0, $(element));
  
  if(this.mark) Element.remove(this.mark);
  this.mark = document.createElement('div');
  this.mark.appendChild(document.createTextNode(" "));
  document.body.appendChild(this.mark);
  this.mark.style.position = 'absolute';
  this.mark.style.top = options.pointerY + "px";
  this.mark.style.left = options.pointerX + "px";
  this.mark.style.width = "5px";
  this.mark.style.height = "5px;";
  this.mark.style.borderTop = "1px solid red;";
  this.mark.style.borderLeft = "1px solid red;";
  
  if(this.step)
    alert('['+new Date().getTime().toString()+'] '+eventName+'/'+Test.Unit.inspect(options));
  
  $(element).dispatchEvent(oEvent);
};

// Note: Due to a fix in Firefox 1.0.5/6 that probably fixed "too much", this doesn't work in 1.0.6 or DP2.
// You need to downgrade to 1.0.4 for now to get this working
// See https://bugzilla.mozilla.org/show_bug.cgi?id=289940 for the fix that fixed too much
Event.simulateKey = function(element, eventName) {
  var options = Object.extend({
    ctrlKey: false,
    altKey: false,
    shiftKey: false,
    metaKey: false,
    keyCode: 0,
    charCode: 0
  }, arguments[2] || {});

  var oEvent = document.createEvent("KeyEvents");
  oEvent.initKeyEvent(eventName, true, true, window, 
    options.ctrlKey, options.altKey, options.shiftKey, options.metaKey,
    options.keyCode, options.charCode );
  $(element).dispatchEvent(oEvent);
};

Event.simulateKeys = function(element, command) {
  for(var i=0; i<command.length; i++) {
    Event.simulateKey(element,'keypress',{charCode:command.charCodeAt(i)});
  }
};

var Test = {};
Test.Unit = {};

// security exception workaround
Test.Unit.inspect = Object.inspect;

Test.Unit.Logger = Class.create();
Test.Unit.Logger.prototype = {
  initialize: function(log) {
    this.log = $(log);
    if (this.log) {
      this._createLogTable();
    }
  },
  start: function(testName) {
    if (!this.log) return;
    this.testName = testName;
    this.lastLogLine = document.createElement('tr');
    this.statusCell = document.createElement('td');
    this.nameCell = document.createElement('td');
    this.nameCell.className = "nameCell";
    this.nameCell.appendChild(document.createTextNode(testName));
    this.messageCell = document.createElement('td');
    this.lastLogLine.appendChild(this.statusCell);
    this.lastLogLine.appendChild(this.nameCell);
    this.lastLogLine.appendChild(this.messageCell);
    this.loglines.appendChild(this.lastLogLine);
  },
  finish: function(status, summary) {
    if (!this.log) return;
    this.lastLogLine.className = status;
    this.statusCell.innerHTML = status;
    this.messageCell.innerHTML = this._toHTML(summary);
    this.addLinksToResults();
  },
  message: function(message) {
    if (!this.log) return;
    this.messageCell.innerHTML = this._toHTML(message);
  },
  summary: function(summary) {
    if (!this.log) return;
    this.logsummary.innerHTML = this._toHTML(summary);
  },
  _createLogTable: function() {
    this.log.innerHTML =
    '<div id="logsummary"></div>' +
    '<table id="logtable">' +
    '<thead><tr><th>Status</th><th>Test</th><th>Message</th></tr></thead>' +
    '<tbody id="loglines"></tbody>' +
    '</table>';
    this.logsummary = $('logsummary');
    this.loglines = $('loglines');
  },
  _toHTML: function(txt) {
    return txt.escapeHTML().replace(/\n/g,"<br/>");
  },
  addLinksToResults: function(){ 
    $$("tr.failed .nameCell").each( function(td){ // todo: limit to children of this.log
      td.title = "Run only this test";
      Event.observe(td, 'click', function(){ window.location.search = "?tests=" + td.innerHTML;});
    });
    $$("tr.passed .nameCell").each( function(td){ // todo: limit to children of this.log
      td.title = "Run all tests";
      Event.observe(td, 'click', function(){ window.location.search = "";});
    });
  }
};

Test.Unit.Runner = Class.create();
Test.Unit.Runner.prototype = {
  initialize: function(testcases) {
    this.options = Object.extend({
      testLog: 'testlog'
    }, arguments[1] || {});
    this.options.resultsURL = this.parseResultsURLQueryParameter();
    this.options.tests      = this.parseTestsQueryParameter();
    if (this.options.testLog) {
      this.options.testLog = $(this.options.testLog) || null;
    }
    if(this.options.tests) {
      this.tests = [];
      for(var i = 0; i < this.options.tests.length; i++) {
        if(/^test/.test(this.options.tests[i])) {
          this.tests.push(new Test.Unit.Testcase(this.options.tests[i], testcases[this.options.tests[i]], testcases["setup"], testcases["teardown"]));
        }
      }
    } else {
      if (this.options.test) {
        this.tests = [new Test.Unit.Testcase(this.options.test, testcases[this.options.test], testcases["setup"], testcases["teardown"])];
      } else {
        this.tests = [];
        for(var testcase in testcases) {
          if(/^test/.test(testcase)) {
            this.tests.push(
               new Test.Unit.Testcase(
                 this.options.context ? ' -> ' + this.options.titles[testcase] : testcase, 
                 testcases[testcase], testcases["setup"], testcases["teardown"]
               ));
          }
        }
      }
    }
    this.currentTest = 0;
    this.logger = new Test.Unit.Logger(this.options.testLog);
    setTimeout(this.runTests.bind(this), 1000);
  },
  parseResultsURLQueryParameter: function() {
    return window.location.search.parseQuery()["resultsURL"];
  },
  parseTestsQueryParameter: function(){
    if (window.location.search.parseQuery()["tests"]){
        return window.location.search.parseQuery()["tests"].split(',');
    };
  },
  // Returns:
  //  "ERROR" if there was an error,
  //  "FAILURE" if there was a failure, or
  //  "SUCCESS" if there was neither
  getResult: function() {
    var hasFailure = false;
    for(var i=0;i<this.tests.length;i++) {
      if (this.tests[i].errors > 0) {
        return "ERROR";
      }
      if (this.tests[i].failures > 0) {
        hasFailure = true;
      }
    }
    if (hasFailure) {
      return "FAILURE";
    } else {
      return "SUCCESS";
    }
  },
  postResults: function() {
    if (this.options.resultsURL) {
      new Ajax.Request(this.options.resultsURL, 
        { method: 'get', parameters: 'result=' + this.getResult(), asynchronous: false });
    }
  },
  runTests: function() {
    var test = this.tests[this.currentTest];
    if (!test) {
      // finished!
      this.postResults();
      this.logger.summary(this.summary());
      return;
    }
    if(!test.isWaiting) {
      this.logger.start(test.name);
    }
    test.run();
    if(test.isWaiting) {
      this.logger.message("Waiting for " + test.timeToWait + "ms");
      setTimeout(this.runTests.bind(this), test.timeToWait || 1000);
    } else {
      this.logger.finish(test.status(), test.summary());
      this.currentTest++;
      // tail recursive, hopefully the browser will skip the stackframe
      this.runTests();
    }
  },
  summary: function() {
    var assertions = 0;
    var failures = 0;
    var errors = 0;
    var messages = [];
    for(var i=0;i<this.tests.length;i++) {
      assertions +=   this.tests[i].assertions;
      failures   +=   this.tests[i].failures;
      errors     +=   this.tests[i].errors;
    }
    return (
      (this.options.context ? this.options.context + ': ': '') + 
      this.tests.length + " tests, " + 
      assertions + " assertions, " + 
      failures   + " failures, " +
      errors     + " errors");
  }
};

Test.Unit.Assertions = Class.create();
Test.Unit.Assertions.prototype = {
  initialize: function() {
    this.assertions = 0;
    this.failures   = 0;
    this.errors     = 0;
    this.messages   = [];
  },
  summary: function() {
    return (
      this.assertions + " assertions, " + 
      this.failures   + " failures, " +
      this.errors     + " errors" + "\n" +
      this.messages.join("\n"));
  },
  pass: function() {
    this.assertions++;
  },
  fail: function(message) {
    this.failures++;
    this.messages.push("Failure: " + message);
  },
  info: function(message) {
    this.messages.push("Info: " + message);
  },
  error: function(error) {
    this.errors++;
    this.messages.push(error.name + ": "+ error.message + "(" + Test.Unit.inspect(error) +")");
  },
  status: function() {
    if (this.failures > 0) return 'failed';
    if (this.errors > 0) return 'error';
    return 'passed';
  },
  assert: function(expression) {
    var message = arguments[1] || 'assert: got "' + Test.Unit.inspect(expression) + '"';
    try { expression ? this.pass() : 
      this.fail(message); }
    catch(e) { this.error(e); }
  },
  assertEqual: function(expected, actual) {
    var message = arguments[2] || "assertEqual";
    try { (expected == actual) ? this.pass() :
      this.fail(message + ': expected "' + Test.Unit.inspect(expected) + 
        '", actual "' + Test.Unit.inspect(actual) + '"'); }
    catch(e) { this.error(e); }
  },
  assertInspect: function(expected, actual) {
    var message = arguments[2] || "assertInspect";
    try { (expected == actual.inspect()) ? this.pass() :
      this.fail(message + ': expected "' + Test.Unit.inspect(expected) + 
        '", actual "' + Test.Unit.inspect(actual) + '"'); }
    catch(e) { this.error(e); }
  },
  assertEnumEqual: function(expected, actual) {
    var message = arguments[2] || "assertEnumEqual";
    try { $A(expected).length == $A(actual).length && 
      expected.zip(actual).all(function(pair) { return pair[0] == pair[1] }) ?
        this.pass() : this.fail(message + ': expected ' + Test.Unit.inspect(expected) + 
          ', actual ' + Test.Unit.inspect(actual)); }
    catch(e) { this.error(e); }
  },
  assertNotEqual: function(expected, actual) {
    var message = arguments[2] || "assertNotEqual";
    try { (expected != actual) ? this.pass() : 
      this.fail(message + ': got "' + Test.Unit.inspect(actual) + '"'); }
    catch(e) { this.error(e); }
  },
  assertIdentical: function(expected, actual) { 
    var message = arguments[2] || "assertIdentical"; 
    try { (expected === actual) ? this.pass() : 
      this.fail(message + ': expected "' + Test.Unit.inspect(expected) +  
        '", actual "' + Test.Unit.inspect(actual) + '"'); } 
    catch(e) { this.error(e); } 
  },
  assertNotIdentical: function(expected, actual) { 
    var message = arguments[2] || "assertNotIdentical"; 
    try { !(expected === actual) ? this.pass() : 
      this.fail(message + ': expected "' + Test.Unit.inspect(expected) +  
        '", actual "' + Test.Unit.inspect(actual) + '"'); } 
    catch(e) { this.error(e); } 
  },
  assertNull: function(obj) {
    var message = arguments[1] || 'assertNull';
    try { (obj==null) ? this.pass() : 
      this.fail(message + ': got "' + Test.Unit.inspect(obj) + '"'); }
    catch(e) { this.error(e); }
  },
  assertMatch: function(expected, actual) {
    var message = arguments[2] || 'assertMatch';
    var regex = new RegExp(expected);
    try { (regex.exec(actual)) ? this.pass() :
      this.fail(message + ' : regex: "' +  Test.Unit.inspect(expected) + ' did not match: ' + Test.Unit.inspect(actual) + '"'); }
    catch(e) { this.error(e); }
  },
  assertHidden: function(element) {
    var message = arguments[1] || 'assertHidden';
    this.assertEqual("none", element.style.display, message);
  },
  assertNotNull: function(object) {
    var message = arguments[1] || 'assertNotNull';
    this.assert(object != null, message);
  },
  assertType: function(expected, actual) {
    var message = arguments[2] || 'assertType';
    try { 
      (actual.constructor == expected) ? this.pass() : 
      this.fail(message + ': expected "' + Test.Unit.inspect(expected) +  
        '", actual "' + (actual.constructor) + '"'); }
    catch(e) { this.error(e); }
  },
  assertNotOfType: function(expected, actual) {
    var message = arguments[2] || 'assertNotOfType';
    try { 
      (actual.constructor != expected) ? this.pass() : 
      this.fail(message + ': expected "' + Test.Unit.inspect(expected) +  
        '", actual "' + (actual.constructor) + '"'); }
    catch(e) { this.error(e); }
  },
  assertInstanceOf: function(expected, actual) {
    var message = arguments[2] || 'assertInstanceOf';
    try { 
      (actual instanceof expected) ? this.pass() : 
      this.fail(message + ": object was not an instance of the expected type"); }
    catch(e) { this.error(e); } 
  },
  assertNotInstanceOf: function(expected, actual) {
    var message = arguments[2] || 'assertNotInstanceOf';
    try { 
      !(actual instanceof expected) ? this.pass() : 
      this.fail(message + ": object was an instance of the not expected type"); }
    catch(e) { this.error(e); } 
  },
  assertRespondsTo: function(method, obj) {
    var message = arguments[2] || 'assertRespondsTo';
    try {
      (obj[method] && typeof obj[method] == 'function') ? this.pass() : 
      this.fail(message + ": object doesn't respond to [" + method + "]"); }
    catch(e) { this.error(e); }
  },
  assertReturnsTrue: function(method, obj) {
    var message = arguments[2] || 'assertReturnsTrue';
    try {
      var m = obj[method];
      if(!m) m = obj['is'+method.charAt(0).toUpperCase()+method.slice(1)];
      m() ? this.pass() : 
      this.fail(message + ": method returned false"); }
    catch(e) { this.error(e); }
  },
  assertReturnsFalse: function(method, obj) {
    var message = arguments[2] || 'assertReturnsFalse';
    try {
      var m = obj[method];
      if(!m) m = obj['is'+method.charAt(0).toUpperCase()+method.slice(1)];
      !m() ? this.pass() : 
      this.fail(message + ": method returned true"); }
    catch(e) { this.error(e); }
  },
  assertRaise: function(exceptionName, method) {
    var message = arguments[2] || 'assertRaise';
    try { 
      method();
      this.fail(message + ": exception expected but none was raised"); }
    catch(e) {
      ((exceptionName == null) || (e.name==exceptionName)) ? this.pass() : this.error(e); 
    }
  },
  assertElementsMatch: function() {
    var expressions = $A(arguments), elements = $A(expressions.shift());
    if (elements.length != expressions.length) {
      this.fail('assertElementsMatch: size mismatch: ' + elements.length + ' elements, ' + expressions.length + ' expressions');
      return false;
    }
    elements.zip(expressions).all(function(pair, index) {
      var element = $(pair.first()), expression = pair.last();
      if (element.match(expression)) return true;
      this.fail('assertElementsMatch: (in index ' + index + ') expected ' + expression.inspect() + ' but got ' + element.inspect());
    }.bind(this)) && this.pass();
  },
  assertElementMatches: function(element, expression) {
    this.assertElementsMatch([element], expression);
  },
  benchmark: function(operation, iterations) {
    var startAt = new Date();
    (iterations || 1).times(operation);
    var timeTaken = ((new Date())-startAt);
    this.info((arguments[2] || 'Operation') + ' finished ' + 
       iterations + ' iterations in ' + (timeTaken/1000)+'s' );
    return timeTaken;
  },
  _isVisible: function(element) {
    element = $(element);
    if(!element.parentNode) return true;
    this.assertNotNull(element);
    if(element.style && Element.getStyle(element, 'display') == 'none')
      return false;
    
    return this._isVisible(element.parentNode);
  },
  assertNotVisible: function(element) {
    this.assert(!this._isVisible(element), Test.Unit.inspect(element) + " was not hidden and didn't have a hidden parent either. " + ("" || arguments[1]));
  },
  assertVisible: function(element) {
    this.assert(this._isVisible(element), Test.Unit.inspect(element) + " was not visible. " + ("" || arguments[1]));
  },
  benchmark: function(operation, iterations) {
    var startAt = new Date();
    (iterations || 1).times(operation);
    var timeTaken = ((new Date())-startAt);
    this.info((arguments[2] || 'Operation') + ' finished ' + 
       iterations + ' iterations in ' + (timeTaken/1000)+'s' );
    return timeTaken;
  }
};

Test.Unit.Testcase = Class.create();
Object.extend(Object.extend(Test.Unit.Testcase.prototype, Test.Unit.Assertions.prototype), {
  initialize: function(name, test, setup, teardown) {
    Test.Unit.Assertions.prototype.initialize.bind(this)();
    this.name           = name;
    
    if(typeof test == 'string') {
      test = test.gsub(/(\.should[^\(]+\()/,'#{0}this,');
      test = test.gsub(/(\.should[^\(]+)\(this,\)/,'#{1}(this)');
      this.test = function() {
        eval('with(this){'+test+'}');
      }
    } else {
      this.test = test || function() {};
    }
    
    this.setup          = setup || function() {};
    this.teardown       = teardown || function() {};
    this.isWaiting      = false;
    this.timeToWait     = 1000;
  },
  wait: function(time, nextPart) {
    this.isWaiting = true;
    this.test = nextPart;
    this.timeToWait = time;
  },
  run: function() {
    try {
      try {
        if (!this.isWaiting) this.setup.bind(this)();
        this.isWaiting = false;
        this.test.bind(this)();
      } finally {
        if(!this.isWaiting) {
          this.teardown.bind(this)();
        }
      }
    }
    catch(e) { this.error(e); }
  }
});

// *EXPERIMENTAL* BDD-style testing to please non-technical folk
// This draws many ideas from RSpec http://rspec.rubyforge.org/

Test.setupBDDExtensionMethods = function(){
  var METHODMAP = {
    shouldEqual:     'assertEqual',
    shouldNotEqual:  'assertNotEqual',
    shouldEqualEnum: 'assertEnumEqual',
    shouldBeA:       'assertType',
    shouldNotBeA:    'assertNotOfType',
    shouldBeAn:      'assertType',
    shouldNotBeAn:   'assertNotOfType',
    shouldBeNull:    'assertNull',
    shouldNotBeNull: 'assertNotNull',
    
    shouldBe:        'assertReturnsTrue',
    shouldNotBe:     'assertReturnsFalse',
    shouldRespondTo: 'assertRespondsTo'
  };
  var makeAssertion = function(assertion, args, object) { 
   	this[assertion].apply(this,(args || []).concat([object]));
  };
  
  Test.BDDMethods = {};   
  $H(METHODMAP).each(function(pair) { 
    Test.BDDMethods[pair.key] = function() { 
       var args = $A(arguments); 
       var scope = args.shift(); 
       makeAssertion.apply(scope, [pair.value, args, this]); }; 
  });
  
  [Array.prototype, String.prototype, Number.prototype, Boolean.prototype].each(
    function(p){ Object.extend(p, Test.BDDMethods) }
  );
};

Test.context = function(name, spec, log){
  Test.setupBDDExtensionMethods();
  
  var compiledSpec = {};
  var titles = {};
  for(specName in spec) {
    switch(specName){
      case "setup":
      case "teardown":
        compiledSpec[specName] = spec[specName];
        break;
      default:
        var testName = 'test'+specName.gsub(/\s+/,'-').camelize();
        var body = spec[specName].toString().split('\n').slice(1);
        if(/^\{/.test(body[0])) body = body.slice(1);
        body.pop();
        body = body.map(function(statement){ 
          return statement.strip()
        });
        compiledSpec[testName] = body.join('\n');
        titles[testName] = specName;
    }
  }
  new Test.Unit.Runner(compiledSpec, { titles: titles, testLog: log || 'testlog', context: name });
};
/*****************************************************************************
scalable Inman Flash Replacement (sIFR) version 3, revision 436.

Copyright 2006 – 2008 Mark Wubben, <http://novemberborn.net/>

Older versions:
* IFR by Shaun Inman
* sIFR 1.0 by Mike Davidson, Shaun Inman and Tomas Jogin
* sIFR 2.0 by Mike Davidson, Shaun Inman, Tomas Jogin and Mark Wubben

See also <http://novemberborn.net/sifr3> and <http://wiki.novemberborn.net/sifr3>.

This software is licensed and provided under the CC-GNU LGPL.
See <http://creativecommons.org/licenses/LGPL/2.1/>
*****************************************************************************/

var sIFR = new function() {
  var self = this;

  var ClassNames  = {
    ACTIVE    : 'sIFR-active',
    REPLACED  : 'sIFR-replaced',
    IGNORE    : 'sIFR-ignore',
    ALTERNATE : 'sIFR-alternate',
    CLASS     : 'sIFR-class',
    LAYOUT    : 'sIFR-layout',
    FLASH     : 'sIFR-flash',
    FIX_FOCUS : 'sIFR-fixfocus',
    DUMMY     : 'sIFR-dummy'
  };
  
  ClassNames.IGNORE_CLASSES = [ClassNames.REPLACED, ClassNames.IGNORE, ClassNames.ALTERNATE];
  
  this.MIN_FONT_SIZE        = 6;
  this.MAX_FONT_SIZE        = 126;
  this.FLASH_PADDING_BOTTOM = 5;
  this.VERSION              = '436';

  this.isActive             = false;
  this.isEnabled            = true;
  this.fixHover             = true;
  this.autoInitialize       = true;
  this.setPrefetchCookie    = true;
  this.cookiePath           = '/';
  this.domains              = [];
  this.forceWidth           = true;
  this.fitExactly           = false;
  this.forceTextTransform   = true;
  this.useDomLoaded         = true;
  this.useStyleCheck        = false;
  this.hasFlashClassSet     = false;
  this.repaintOnResize      = true;
  this.replacements         = [];
  
  var elementCount          = 0; // The number of replaced elements.
  var isInitialized         = false;

  function Errors() {
    this.fire = function(id) {
      if(this[id + 'Alert']) alert(this[id + 'Alert']);
      throw new Error(this[id]);
    };
  
    this.isFile      = 'sIFR: Did not activate because the page is being loaded from the filesystem.';
    this.isFileAlert = 'Hi!\n\nThanks for using sIFR on your page. Unfortunately sIFR couldn\'t activate, because it was loaded '
                        + 'directly from your computer.\nDue to Flash security restrictions, you need to load sIFR through a web'
                        + ' server.\n\nWe apologize for the inconvenience.';
  };
  
  function Util(sIFR) {
    function capitalize($) {
      return $.toLocaleUpperCase();
    }
    
    this.normalize = function(str) {
      // Replace linebreaks and &nbsp; by whitespace, then normalize.
      // Flash doesn't support no-breaking space characters, hence they're replaced by a normal space.
      return str.replace(/\n|\r|\xA0/g, Util.SINGLE_WHITESPACE).replace(/\s+/g, Util.SINGLE_WHITESPACE);
    };
    
    this.textTransform = function(type, str) {
      switch(type) {
        case 'uppercase':
          return str.toLocaleUpperCase();
        case 'lowercase':
          return str.toLocaleLowerCase();
        case 'capitalize':
          return str.replace(/^\w|\s\w/g, capitalize);
      }
      return str;
    };
    
    this.toHexString = function(str) {
      if(str.charAt(0) != '#' || str.length != 4 && str.length != 7) return str;
      
      str = str.substring(1);
      return '0x' + (str.length == 3 ? str.replace(/(.)(.)(.)/, '$1$1$2$2$3$3') : str);
    };
    
    this.toJson = function(obj, strFunc) {
      var json = '';
  
      switch(typeof(obj)) {
        case 'string':
          json = '"' + strFunc(obj) + '"';
          break;
        case 'number':
        case 'boolean':
          json = obj.toString();
          break;
        case 'object':
          json = [];
          for(var prop in obj) {
            if(obj[prop] == Object.prototype[prop]) continue;
            json.push('"' + prop + '":' + this.toJson(obj[prop]));
          }
          json = '{' + json.join(',') + '}';
          break;
      }
  
      return json;
    };
  
    this.convertCssArg = function(arg) {
      if(!arg) return {};
      if(typeof(arg) == 'object') {
        if(arg.constructor == Array) arg = arg.join('');
        else return arg;
      }
  
      var obj = {};
      var rules = arg.split('}');
  
      for(var i = 0; i < rules.length; i++) {
        var $ = rules[i].match(/([^\s{]+)\s*\{(.+)\s*;?\s*/);
        if(!$ || $.length != 3) continue;
  
        if(!obj[$[1]]) obj[$[1]] = {};
  
        var properties = $[2].split(';');
        for(var j = 0; j < properties.length; j++) {
          var $2 = properties[j].match(/\s*([^:\s]+)\s*\:\s*([^;]+)/);
          if(!$2 || $2.length != 3) continue;
          obj[$[1]][$2[1]] = $2[2].replace(/\s+$/, '');
        }
      }
  
      return obj;
    };
  
    this.extractFromCss = function(css, selector, property, remove) {
      var value = null;
  
      if(css && css[selector] && css[selector][property]) {
        value = css[selector][property];
        if(remove) delete css[selector][property];
      }
  
      return value;
    };
    
    this.cssToString = function(arg) {
      var css = [];
      for(var selector in arg) {
        var rule = arg[selector];
        if(rule == Object.prototype[selector]) continue;
  
        css.push(selector, '{');
        for(var property in rule) {
          if(rule[property] == Object.prototype[property]) continue;
          var value = rule[property];
          if(Util.UNIT_REMOVAL_PROPERTIES[property]) value = parseInt(value, 10);
          css.push(property, ':', value, ';');
        }
        css.push('}');
      }
  
      return css.join('');
    };
  
    this.escape = function(str) {
      return escape(str).replace(/\+/g, '%2B');
    };
    
    this.encodeVars = function(vars) {
      return vars.join('&').replace(/%/g, '%25');
    };
    
    this.copyProperties = function(from, to) {
      for(var property in from) {
        if(to[property] === undefined) to[property] = from[property];
      }
      return to;
    };
    
    this.domain = function() {
      var domain = '';
      // When trying to access document.domain on a Google-translated page with Firebug, I got an exception. 
      // Try/catch to be safe.
      try { domain = document.domain } catch(e) {};
      return domain;
    };
    
    this.domainMatches = function(domain, match) {
      if(match == '*' || match == domain) return true;
  
      var wildcard = match.lastIndexOf('*');
      if(wildcard > -1) {
        match = match.substr(wildcard + 1);
        var matchPosition = domain.lastIndexOf(match);
        if(matchPosition > -1 && (matchPosition + match.length) == domain.length) return true;
      }
      
      return false;
    };
    
    this.uriEncode = function(s) {
      return encodeURI(decodeURIComponent(s));  // Decode first, in case the URI was already encoded.
    };
    
    this.delay = function(ms, func, scope) {
      var args = Array.prototype.slice.call(arguments, 3);
      setTimeout(function() { func.apply(scope, args) }, ms);
    };
  };
  
  Util.UNIT_REMOVAL_PROPERTIES = {leading: true, 'margin-left': true, 'margin-right': true, 'text-indent': true};
  Util.SINGLE_WHITESPACE       = ' ';
  
  
  function DomUtil(sIFR) {
    var self = this;
    
    function getDimensionFromStyle(node, property, offsetProperty)
    {
      var dimension = self.getStyleAsInt(node, property, sIFR.ua.ie);
      if(dimension == 0) {
        dimension = node[offsetProperty];
        for(var i = 3; i < arguments.length; i++) dimension -= self.getStyleAsInt(node, arguments[i], true);
      }
      return dimension;
    }
    
    this.getBody = function() {
      return document.getElementsByTagName('body')[0] || null;
    };
    
    this.querySelectorAll = function(selector) {
      return window.parseSelector(selector);
    };
  
    this.addClass = function(name, node) {
      if(node) node.className = ((node.className || '') == '' ? '' : node.className + ' ') + name;
    };
    
    this.removeClass = function(name, node) {
      if(node) node.className = node.className.replace(new RegExp('(^|\\s)' + name + '(\\s|$)'), '').replace(/^\s+|(\s)\s+/g, '$1');
    };
  
    this.hasClass = function(name, node) {
      return new RegExp('(^|\\s)' + name + '(\\s|$)').test(node.className);
    };
    
    this.hasOneOfClassses = function(names, node) {
      for(var i = 0; i < names.length; i++) {
        if(this.hasClass(names[i], node)) return true;
      }
      return false;
    };
    
    this.ancestorHasClass = function(node, name) {
      node = node.parentNode;
      while(node && node.nodeType == 1) {
        if(this.hasClass(name, node)) return true;
        node = node.parentNode;
      }
      return false;
    };
  
    this.create = function(name, className) {
      var node = document.createElementNS ? document.createElementNS(DomUtil.XHTML_NS, name) : document.createElement(name);
      if(className) node.className = className;
      return node;
    };
    
    this.getComputedStyle = function(node, property) {
      var result;
      if(document.defaultView && document.defaultView.getComputedStyle) {
        var style = document.defaultView.getComputedStyle(node, null);
        result = style ? style[property] : null;
      } else {
        if(node.currentStyle) result = node.currentStyle[property];
      }
      return result || ''; // Ensuring a string.
    };
  
    this.getStyleAsInt = function(node, property, requirePx) {
      var value = this.getComputedStyle(node, property);
      if(requirePx && !/px$/.test(value)) return 0;
      return parseInt(value) || 0;
    };
    
    this.getWidthFromStyle = function(node) {
      return getDimensionFromStyle(node, 'width', 'offsetWidth', 'paddingRight', 'paddingLeft', 'borderRightWidth', 'borderLeftWidth');
    };
  
    this.getHeightFromStyle = function(node) {
      return getDimensionFromStyle(node, 'height', 'offsetHeight', 'paddingTop', 'paddingBottom', 'borderTopWidth', 'borderBottomWidth');
    };
  
    this.getDimensions = function(node) {
      var width  = node.offsetWidth;
      var height = node.offsetHeight;
      
      if(width == 0 || height == 0) {
        for(var i = 0; i < node.childNodes.length; i++) {
          var child = node.childNodes[i];
          if(child.nodeType != 1) continue;
          width  = Math.max(width, child.offsetWidth);
          height = Math.max(height, child.offsetHeight);
        }
      }
      
      return {width: width, height: height};
    };
    
    this.getViewport = function() {
      return {
        width:  window.innerWidth  || document.documentElement.clientWidth  || this.getBody().clientWidth,
        height: window.innerHeight || document.documentElement.clientHeight || this.getBody().clientHeight
      };
    };
    
    this.blurElement = function(element) {
      try {
        element.blur();
        return;
      } catch(e) {};
      
      // Move the focus to an input element, and then destroy it.
      var input = this.create('input');
      input.style.width  = '0px';
      input.style.height = '0px';
      element.parentNode.appendChild(input);
      input.focus();
      input.blur();
      input.parentNode.removeChild(input);
    };
  };
  
  DomUtil.XHTML_NS = 'http://www.w3.org/1999/xhtml';
  
  function UserAgentDetection(sIFR) {
    var ua              = navigator.userAgent.toLowerCase();
    var product         = (navigator.product || '').toLowerCase();
    var platform        = navigator.platform.toLowerCase();
  
    this.parseVersion = UserAgentDetection.parseVersion;
  
    this.macintosh        = /^mac/.test(platform);
    this.windows          = /^win/.test(platform);
    this.linux            = /^linux/.test(platform);
    this.quicktime        = false;
  
    this.opera            = /opera/.test(ua);
    this.konqueror        = /konqueror/.test(ua);
    this.ie               = false/*@cc_on || true @*/;
    this.ieSupported      = this.ie         && !/ppc|smartphone|iemobile|msie\s5\.5/.test(ua)/*@cc_on && @_jscript_version >= 5.5 @*/
    this.ieWin            = this.windows    && this.ie/*@cc_on && @_jscript_version >= 5.1 @*/;
    this.windows          = this.windows    && (!this.ie || this.ieWin);
    this.ieMac            = this.macintosh  && this.ie/*@cc_on && @_jscript_version < 5.1 @*/;
    this.macintosh        = this.macintosh  && (!this.ie || this.ieMac);
    this.safari           = /safari/.test(ua);
    this.webkit           = !this.konqueror && /applewebkit/.test(ua);
    this.khtml            = this.webkit     || this.konqueror;
    this.gecko            = !this.khtml     && product == 'gecko';
                          
    this.ieVersion        = this.ie         && /.*msie\s(\d\.\d)/.exec(ua)           ? this.parseVersion(RegExp.$1) : '0';
    this.operaVersion     = this.opera      && /.*opera(\s|\/)(\d+\.\d+)/.exec(ua)   ? this.parseVersion(RegExp.$2) : '0';
    this.webkitVersion    = this.webkit     && /.*applewebkit\/(\d+).*/.exec(ua)     ? this.parseVersion(RegExp.$1) : '0';
    this.geckoVersion     = this.gecko      && /.*rv:\s*([^\)]+)\)\s+gecko/.exec(ua) ? this.parseVersion(RegExp.$1) : '0';
    this.konquerorVersion = this.konqueror  && /.*konqueror\/([\d\.]+).*/.exec(ua)   ? this.parseVersion(RegExp.$1) : '0';
  
    this.flashVersion   = 0;
  
    if(this.ieWin) {
      var axo;
      var stop = false;
      try {
        axo = new ActiveXObject('ShockwaveFlash.ShockwaveFlash.7');
      } catch(e) {
        // In case the Flash 7 registry key does not exist, we need to test for specific 
        // Flash 6 installs before we can use the general key. 
        // See also <http://blog.deconcept.com/2006/01/11/getvariable-setvariable-crash-internet-explorer-flash-6/>.
        // Many thanks to Geoff Stearns and Bobby van der Sluis for clarifying the problem and providing
        // examples of non-crashing code.
        try {
          axo                   = new ActiveXObject('ShockwaveFlash.ShockwaveFlash.6');
          this.flashVersion     = this.parseVersion('6');
          axo.AllowScriptAccess = 'always';
        } catch(e) { stop = this.flashVersion == this.parseVersion('6'); }
        
        if(!stop) try { axo = new ActiveXObject('ShockwaveFlash.ShockwaveFlash'); } catch(e) {}
      }
      
      if(!stop && axo) {
        this.flashVersion = this.parseVersion((axo.GetVariable('$version') || '').replace(/^\D+(\d+)\D+(\d+)\D+(\d+).*/g, '$1.$2.$3'));
      }
    } else if(navigator.plugins && navigator.plugins['Shockwave Flash']) {
      var d = navigator.plugins['Shockwave Flash'].description.replace(/^.*\s+(\S+\s+\S+$)/, '$1');
      var v = d.replace(/^\D*(\d+\.\d+).*$/, '$1');
      if(/r/.test(d)) v += d.replace(/^.*r(\d*).*$/, '.$1');
      else if(/d/.test(d)) v += '.0';
      this.flashVersion = this.parseVersion(v);
      
      // Watch out for QuickTime, which could be stealing the Flash handling! Also check to make sure the plugin for the Flash
      // MIMEType is enabled.
      var foundEnabled = false;
      for(var i = 0, valid = this.flashVersion >= UserAgentDetection.MIN_FLASH_VERSION; valid && i < navigator.mimeTypes.length; i++) {
        var mime = navigator.mimeTypes[i];
        if(mime.type != 'application/x-shockwave-flash') continue;
        if(mime.enabledPlugin) {
          foundEnabled = true;
          if(mime.enabledPlugin.description.toLowerCase().indexOf('quicktime') > -1) {
            valid = false;
            this.quicktime = true;
          }
        }
      }
      
      if(this.quicktime || !foundEnabled) this.flashVersion = this.parseVersion('0');
    }
    this.flash = this.flashVersion >= UserAgentDetection.MIN_FLASH_VERSION;
    this.transparencySupport  = this.macintosh || this.windows
                                               || this.linux && (
                                                    this.flashVersion >= this.parseVersion('10')
                                                    && (
                                                      this.gecko && this.geckoVersion >= this.parseVersion('1.9')
                                                      || this.opera
                                                    )
                                                  );
    this.computedStyleSupport = this.ie || !!document.defaultView.getComputedStyle;
    this.fixFocus             = this.gecko  && this.windows;
    this.nativeDomLoaded      = this.gecko  || this.webkit    && this.webkitVersion  >= this.parseVersion('525')
                                            || this.konqueror && this.konquerorMajor >  this.parseVersion('03') || this.opera;
    this.mustCheckStyle       = this.khtml  || this.opera;
    this.forcePageLoad        = this.webkit && this.webkitVersion < this.parseVersion('523')
    this.properDocument       = typeof(document.location) == 'object';
  
    this.supported            = this.flash  && this.properDocument && (!this.ie || this.ieSupported) && this.computedStyleSupport
                                            && (!this.opera  || this.operaVersion  >= this.parseVersion('9.61')) 
                                            && (!this.webkit || this.webkitVersion >= this.parseVersion('412'))
                                            && (!this.gecko  || this.geckoVersion  >= this.parseVersion('1.8.0.12'))
                                            && (!this.konqueror/* || this.konquerorVersion >= this.parseVersion('4.1')*/);
  };
  
  UserAgentDetection.parseVersion = function(s) {
    return s.replace(
      /(^|\D)(\d+)(?=\D|$)/g,
      function(s, nonDigit, digits) {
        s = nonDigit;
        for(var i = 4 - digits.length; i >= 0; i--) s += '0';
        return s + digits;
      }
    );
  };
  UserAgentDetection.MIN_FLASH_VERSION = UserAgentDetection.parseVersion('8');
  
  function FragmentIdentifier(sIFR) {
    this.fix = sIFR.ua.ieWin && window.location.hash != '';
  
    var cachedTitle;
    this.cache = function() {
      cachedTitle = document.title;
    };
  
    function doFix() {
      document.title = cachedTitle;
    }
  
    this.restore = function() {
      if(this.fix) setTimeout(doFix, 0);
    };
  };
  function PageLoad(sIFR) {
    var dummy = null;
    
    function pollLoad() {
      try {
        // IE hack courtesy of Diego Perini – <http://javascript.nwbox.com/IEContentLoaded/>.
        // Merged polling taken from jQuery – <http://dev.jquery.com/browser/trunk/jquery/src/event.js>
        if(sIFR.ua.ie || document.readyState != 'loaded' && document.readyState != 'complete') {
          document.documentElement.doScroll('left');
        }
      } catch(e) {
        return setTimeout(pollLoad, 10);
      }
      afterDomLoad();
    };
    
    function afterDomLoad() {
      if(sIFR.useStyleCheck) checkStyle();
      else if(!sIFR.ua.mustCheckStyle) fire(null, true);
    };
    
    function checkStyle() {
      dummy = sIFR.dom.create("div", ClassNames.DUMMY);
      sIFR.dom.getBody().appendChild(dummy);
      pollStyle();
    };
    
    function pollStyle() {
      if(sIFR.dom.getComputedStyle(dummy, 'marginLeft') == '42px') afterStyle();
      else setTimeout(pollStyle, 10);
    };
    
    function afterStyle() {
      if(dummy && dummy.parentNode) dummy.parentNode.removeChild(dummy);
      dummy = null;
      fire(null, true);
    };
    
    function fire(evt, preserveReplacements) {
      sIFR.initialize(preserveReplacements);
      
      // Remove handlers to prevent memory leak in Firefox 1.5, but only after onload.
      if(evt && evt.type == 'load') {
        if(document.removeEventListener) document.removeEventListener('DOMContentLoaded', fire, false);
        if(window.removeEventListener) window.removeEventListener('load', fire, false);
      }
    };
    
    // Unload detection based on the research from Moxiecode. <http://blog.moxiecode.com/2008/04/08/unload-event-never-fires-in-ie/>
    function verifyUnload() {
      sIFR.prepareClearReferences();
      if(document.readyState == 'interactive') {
        document.attachEvent('onstop', unloadByStop);
        setTimeout(function() { document.detachEvent('onstop', unloadByStop) }, 0);
      }
    };
    
    function unloadByStop() {
      document.detachEvent('onstop', unloadByStop);
      fireUnload();
    };
    
    function fireUnload() {
      sIFR.clearReferences();
    };
    
    this.attach = function() {
      if(window.addEventListener) window.addEventListener('load', fire, false);
      else window.attachEvent('onload', fire);
      
      if(!sIFR.useDomLoaded || sIFR.ua.forcePageLoad || sIFR.ua.ie && window.top != window) return;
      
      if(sIFR.ua.nativeDomLoaded) {
        document.addEventListener('DOMContentLoaded', afterDomLoad, false);
      } else if(sIFR.ua.ie || sIFR.ua.khtml) {
        pollLoad();
      } 
    };
    
    this.attachUnload = function() {
      if(!sIFR.ua.ie) return;
      window.attachEvent('onbeforeunload', verifyUnload);
      window.attachEvent('onunload', fireUnload);
    }
  };
  
  var PREFETCH_COOKIE = 'sifrFetch';
  
  function Prefetch(sIFR) {
    var hasPrefetched = false;
    
    this.fetchMovies = function(movies) {
      if(sIFR.setPrefetchCookie && new RegExp(';?' + PREFETCH_COOKIE + '=true;?').test(document.cookie)) return;
  
      try { // We don't know which DOM actions the user agent will allow
        hasPrefetched = true;
        prefetch(movies);
      } catch(e) {}
  
      if(sIFR.setPrefetchCookie) document.cookie = PREFETCH_COOKIE + '=true;path=' + sIFR.cookiePath;
    };
  
    this.clear = function() {
      if(!hasPrefetched) return;
  
      try {
        var nodes = document.getElementsByTagName('script');
        for(var i = nodes.length - 1; i >= 0; i--) {
          var node = nodes[i];
          if(node.type == 'sifr/prefetch') node.parentNode.removeChild(node);
        }
      } catch(e) {}
    };
    
    function prefetch(args) {
      for(var i = 0; i < args.length; i++) {
        document.write('<scr' + 'ipt defer type="sifr/prefetch" src="' + args[i].src + '"></' + 'script>');
      }
    }
  };
  
  function BrokenFlashIE(sIFR) {
    var active      = sIFR.ua.ie;
    var fixFlash    = active && sIFR.ua.flashVersion < sIFR.ua.parseVersion('9.0.115');
    var resetMovies = {};
    var registry    = {};
    
    this.fixFlash = fixFlash;
    
    this.register = function(flashNode) {
      if(!active) return;
      
      var id = flashNode.getAttribute('id');
      // Try cleaning up previous Flash <object>
      this.cleanup(id, false);
      
      registry[id] = flashNode;
      delete resetMovies[id];
      
      if(fixFlash) window[id] = flashNode;
    };
    
    this.reset = function() {
      if(!active) return false;
      
      for(var i = 0; i < sIFR.replacements.length; i++) {
        var flash = sIFR.replacements[i];
        var flashNode = registry[flash.id];
        if(!resetMovies[flash.id] && (!flashNode.parentNode || flashNode.parentNode.nodeType == 11)) {
          flash.resetMovie();
          resetMovies[flash.id] = true;
        }
      }
      
      return true;
    };
    
    this.cleanup = function(id, usePlaceholder) {
      var node = registry[id];
      if(!node) return;
      
      for(var expando in node) {
        if(typeof(node[expando]) == 'function') node[expando] = null;
      }
      registry[id] = null;
      if(fixFlash) window[id] = null;
      
      if(node.parentNode) {
        if(usePlaceholder && node.parentNode.nodeType == 1) {
          // Replace the Flash node by a placeholde element with the same dimensions. This stops the page from collapsing
          // when the Flash movies are removed.
          var placeholder          = document.createElement('div');
          placeholder.style.width  = node.offsetWidth  + 'px';
          placeholder.style.height = node.offsetHeight + 'px';
          node.parentNode.replaceChild(placeholder, node);
        } else {
          node.parentNode.removeChild(node);
        }
      }
    };
    
    this.prepareClearReferences = function() {
      if(!fixFlash) return;
      
      // Disable Flash cleanup, see <http://blog.deconcept.com/2006/05/18/flash-player-bug-streaming-content-innerhtml-ie/>
      // for more info.
      __flash_unloadHandler      = function(){};
      __flash_savedUnloadHandler = function(){};
    };
    
    this.clearReferences = function() {
      // Since we've disabled Flash' own cleanup, add all objects on the page to our registry so they can be cleaned up.
      if(fixFlash) {
        var objects = document.getElementsByTagName('object');
        for(var i = objects.length - 1; i >= 0; i--) registry[objects[i].getAttribute('id')] = objects[i];
      }
      
      for(var id in registry) {
        if(Object.prototype[id] != registry[id]) this.cleanup(id, true);
      }
    };
  }
  
  function FlashInteractor(sIFR, id, vars, forceWidth, events) {
    this.sIFR         = sIFR;
    this.id           = id;
    this.vars         = vars;
    // Type of value depends on SWF builder. This could use some improvement!
    this.movie        = null;
    
    this.__forceWidth = forceWidth;
    this.__events     = events;
    this.__resizing   = 0;
  }
  
  FlashInteractor.prototype = {
    getFlashElement: function() {
      return document.getElementById(this.id);
    },
    
    getAlternate: function() {
      return document.getElementById(this.id + '_alternate');
    },
    
    getAncestor: function() {
      var ancestor = this.getFlashElement().parentNode;
      return !this.sIFR.dom.hasClass(ClassNames.FIX_FOCUS, ancestor) ? ancestor : ancestor.parentNode;
    },
    
    available: function() {
      var flashNode = this.getFlashElement();
      return flashNode && flashNode.parentNode;
    },
    
    call: function(type) {
      var flashNode = this.getFlashElement();
      
      if (!flashNode[type]) {
        return false;
      }
      // In Firefox 2, exposed Flash methods aren't proper functions, there's no `apply()` method! This workaround
      // does work, though.
      return Function.prototype.apply.call(flashNode[type], flashNode, Array.prototype.slice.call(arguments, 1));
    },
    
    attempt: function() {
      if(!this.available()) return false;
      
      try {
        this.call.apply(this, arguments);
      } catch(e) {
        if(this.sIFR.debug) throw e;
        return false;
      }
      
      return true;
    },
    
    updateVars: function(name, value) {
      for(var i = 0; i < this.vars.length; i++) {
        if (this.vars[i].split('=')[0] == name) {
          this.vars[i] = name + '=' + value;
          break;
        }
      }
      
      var vars = this.sIFR.util.encodeVars(this.vars);
      this.movie.injectVars(this.getFlashElement(), vars);
      this.movie.injectVars(this.movie.html, vars);
    },
    
    storeSize: function(type, value) {
      this.movie.setSize(type, value);
      this.updateVars(type, value);
    },
    
    fireEvent: function(name) {
      if(this.available() && this.__events[name]) this.sIFR.util.delay(0, this.__events[name], this, this);
    },
    
    resizeFlashElement: function(height, width, firstResize) {
      if(!this.available()) return;
      
      this.__resizing++;
      
      var flashNode = this.getFlashElement();
      flashNode.setAttribute('height', height);
      
      // Reset element height as declared by `MovieCreator`
      this.getAncestor().style.minHeight = '';
      
      this.updateVars('renderheight', height);
      this.storeSize('height', height);
      if(width !== null) {
        flashNode.setAttribute('width', width);
        // Don't store the size, it may cause Flash to wrap the text when the movie is reset.
        this.movie.setSize('width', width);
      }
      if(this.__events.onReplacement) {
        this.sIFR.util.delay(0, this.__events.onReplacement, this, this);
        delete this.__events.onReplacement;
      }
      
      if(firstResize) {
        this.sIFR.util.delay(0, function() {
          this.attempt('scaleMovie');
          this.__resizing--;
        }, this);
      } else {
        this.__resizing--;
      }
    },
    
    blurFlashElement: function() {
      if(this.available()) this.sIFR.dom.blurElement(this.getFlashElement());
    },
    
    resetMovie: function() {
      this.sIFR.util.delay(0, this.movie.reset, this.movie, this.getFlashElement(), this.getAlternate());
    },
    
    resizeAfterScale: function() {
      if(this.available() && this.__resizing == 0) this.sIFR.util.delay(0, this.resize, this);
    },
    
    resize: function() {
      if(!this.available()) return;
      
      this.__resizing++;
      
      var flashNode      = this.getFlashElement();
      var currentWidth   = flashNode.offsetWidth;
      
      // The Flash movie has no dimensions, which means it's not visible anyway. No need to recalculate.
      if(currentWidth == 0) return;
      
      var originalWidth  = flashNode.getAttribute('width');
      var originalHeight = flashNode.getAttribute('height');
      
      var ancestor       = this.getAncestor();
      var minHeight      = this.sIFR.dom.getHeightFromStyle(ancestor);
      
      // Remove Flash movie from flow
      flashNode.style.width  = '1px';
      flashNode.style.height = '1px';
      
      // Set a minimal height on the flashNode's parent, to stop a reflow
      ancestor.style.minHeight = minHeight + 'px';
      
      // Restore original content
      var nodes = this.getAlternate().childNodes;
      var clones = [];
      for(var i = 0; i < nodes.length; i++) {
        var node = nodes[i].cloneNode(true);
        clones.push(node);
        ancestor.appendChild(node);
      }
      
      // Calculate width
      var width = this.sIFR.dom.getWidthFromStyle(ancestor);
      
      // Remove original content again
      for(var i = 0; i < clones.length; i++) ancestor.removeChild(clones[i]);
      
      // Reset Flash movie flow
      flashNode.style.width = flashNode.style.height = ancestor.style.minHeight = '';
      flashNode.setAttribute('width', this.__forceWidth ? width : originalWidth);
      flashNode.setAttribute('height', originalHeight);
      
      // IE can get mightily confused about where to draw the Flash <object>. This is a workaround to force IE to repaint
      // the <object>.
      if(sIFR.ua.ie) {
        flashNode.style.display = 'none';
        var repaint = flashNode.offsetHeight;
        flashNode.style.display = '';
      }
      
      // Resize!
      if(width != currentWidth) {
        if(this.__forceWidth) this.storeSize('width', width);
        this.attempt('resize', width);
      }
      
      this.__resizing--;
    },
    
    // `content` must not be util.escaped when passed in.
    // alternate may be an array of nodes to be appended to the alternate content, use this
    // in XHTML documents.
    replaceText: function(content, alternate) {
      var escapedContent = this.sIFR.util.escape(content);
      if(!this.attempt('replaceText', escapedContent)) return false;
      
      this.updateVars('content', escapedContent);
      var node = this.getAlternate();
      if(alternate) {
        while(node.firstChild) node.removeChild(node.firstChild);
        for(var i = 0; i < alternate.length; i++) node.appendChild(alternate[i]);
      } else {
        try { node.innerHTML = content; } catch(e) {};
      }
      
      return true;
    },
    
    changeCSS: function(css) {
      css = this.sIFR.util.escape(this.sIFR.util.cssToString(this.sIFR.util.convertCssArg(css)));
      this.updateVars('css', css);
      return this.attempt('changeCSS', css);
    },
    
    remove: function() {
      if(this.movie && this.available()) this.movie.remove(this.getFlashElement(), this.id);
    }
  };
  
  var MovieCreator = new function() {
    this.create = function(sIFR, brokenFlash, node, fixFocus, id, src, width, height, vars, wmode, backgroundColor) {
      var klass = sIFR.ua.ie ? IEFlashMovie : FlashMovie;
      return new klass(
        sIFR, brokenFlash, node, fixFocus, 
        id, src, width, height, 
        ['flashvars', vars, 'wmode', wmode, 'bgcolor', backgroundColor, 'allowScriptAccess', 'always', 'quality', 'best']
      );
    }
    
    function FlashMovie(sIFR, brokenFlash, node, fixFocus, id, src, width, height, params) {
      var object = sIFR.dom.create('object', ClassNames.FLASH);
      var attrs  = ['type', 'application/x-shockwave-flash', 'id', id, 'name', id, 'data', src, 'width', width, 'height', height];
      for(var i = 0; i < attrs.length; i += 2) object.setAttribute(attrs[i], attrs[i + 1]);
      
      var insertion = object;
      if(fixFocus) {
        insertion = dom.create("div", ClassNames.FIX_FOCUS);
        insertion.appendChild(object);
      }
      
      for(var i = 0; i < params.length; i+=2) {
        if(params[i] == 'name') continue;
        
        var param = dom.create('param');
        param.setAttribute('name', params[i]);
        param.setAttribute('value', params[i + 1]);
        object.appendChild(param);
      }
      
      // Before removing the existing content, set its height such that the element
      // does not collapse. Height is restored in `FlashInteractor#resizeFlashElement`.
      node.style.minHeight = height + 'px';
      
      while(node.firstChild) node.removeChild(node.firstChild);
      node.appendChild(insertion);
      
      this.html = insertion.cloneNode(true);
    }
    
    FlashMovie.prototype = {
      reset: function(flashNode, alternate) {
        flashNode.parentNode.replaceChild(this.html.cloneNode(true), flashNode);
      },
      
      remove: function(flashNode, id) {
        flashNode.parentNode.removeChild(flashNode);
      },
      
      setSize: function(type, value) {
        this.html.setAttribute(type, value);
      },
      
      injectVars: function(flash, encodedVars) {
        var params = flash.getElementsByTagName('param');
        for(var i = 0; i < params.length; i++) {
          if(params[i].getAttribute('name') == 'flashvars') {
            params[i].setAttribute('value', encodedVars);
            break;
          }
        }
      }
    };
    
    function IEFlashMovie(sIFR, brokenFlash, node, fixFocus, id, src, width, height, params) {
      this.dom    = sIFR.dom;
      this.broken = brokenFlash;
      
      this.html = '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" id="' + id +
        '" width="' + width + '" height="' + height + '" class="' + ClassNames.FLASH + '">' +
        '<param name="movie" value="' + src + '"></param></object>'
        ;
      var paramsHtml = '';
      for(var i = 0; i < params.length; i+=2) {
        paramsHtml += '<param name="' + params[i] + '" value="' + params[i + 1] + '"></param>';
      }
      this.html      = this.html.replace(/(<\/object>)/, paramsHtml + '$1');
      
      // Before removing the existing content, set its height such that the element
      // does not collapse. Height is restored in `FlashInteractor#resizeFlashElement`.
      node.style.minHeight = height + 'px';
      
      node.innerHTML = this.html;
      
      this.broken.register(node.firstChild);
    }
    
    IEFlashMovie.prototype = {
      reset: function(flashNode, alternate) {
        alternate            = alternate.cloneNode(true);
        var parent           = flashNode.parentNode;
        parent.innerHTML     = this.html;
        this.broken.register(parent.firstChild);
        parent.appendChild(alternate);
      },
      
      remove: function(flashNode, id) {
        this.broken.cleanup(id);
      },
      
      setSize: function(type, value) {
         this.html = this.html.replace(type == 'height' ? /(height)="\d+"/ : /(width)="\d+"/, '$1="' + value + '"');
      },
      
      injectVars: function(flash, encodedVars) {
        if(flash != this.html) return;
        this.html = this.html.replace(/(flashvars(=|\"\svalue=)\")[^\"]+/, '$1' + encodedVars);
      }
    };
  }
  
  this.errors =             new Errors(self);
  var util    = this.util = new Util(self);
  var dom     = this.dom  = new DomUtil(self);
  var ua      = this.ua   = new UserAgentDetection(self);
  var hacks   = {
    fragmentIdentifier:     new FragmentIdentifier(self),
    pageLoad:               new PageLoad(self),
    prefetch:               new Prefetch(self),
    brokenFlashIE:          new BrokenFlashIE(self)
  };
  this.__resetBrokenMovies = hacks.brokenFlashIE.reset;
  
  var replaceKwargsStore = {
    kwargs: [],
    replaceAll:  function(preserve) {
      for(var i = 0; i < this.kwargs.length; i++) self.replace(this.kwargs[i]);
      if(!preserve) this.kwargs = [];
    }
  };
  
  this.activate = function(/* … */) {
    if(!ua.supported || !this.isEnabled || this.isActive || !isValidDomain() || isFile()) return;
    hacks.prefetch.fetchMovies(arguments);
    
    this.isActive = true;
    this.setFlashClass();
    hacks.fragmentIdentifier.cache();
    hacks.pageLoad.attachUnload();
    
    if(!this.autoInitialize) return;
    
    hacks.pageLoad.attach();
  };
  
  this.setFlashClass = function() {
    if(this.hasFlashClassSet) return;
    
    dom.addClass(ClassNames.ACTIVE, dom.getBody() || document.documentElement);
    this.hasFlashClassSet = true;
  };
  
  this.removeFlashClass = function() {
    if(!this.hasFlashClassSet) return;
    
    dom.removeClass(ClassNames.ACTIVE, dom.getBody());
    dom.removeClass(ClassNames.ACTIVE, document.documentElement);
    this.hasFlashClassSet = false;
  };
  
  this.initialize = function(preserveReplacements) {
    if(!this.isActive || !this.isEnabled) return;
    if(isInitialized) {
      if(!preserveReplacements) replaceKwargsStore.replaceAll(false);
      return;
    }
    
    isInitialized = true;
    replaceKwargsStore.replaceAll(preserveReplacements);
    
    if(self.repaintOnResize) {
      if(window.addEventListener) window.addEventListener('resize', resize, false);
      else window.attachEvent('onresize', resize);
    }
    
    hacks.prefetch.clear();
  };
  
  this.replace = function(kwargs, mergeKwargs) {
    if(!ua.supported) return;
    
    // This lets you specify two kwarg objects so you don't have to repeat common settings.
    // The first object will be merged with the second, while properties in the second 
    // object have priority over those in the first. The first object is unmodified
    // for further use, the resulting second object will be used in the replacement.
    if(mergeKwargs) kwargs = util.copyProperties(kwargs, mergeKwargs);
    
    if(!isInitialized) return replaceKwargsStore.kwargs.push(kwargs);
    
    if(this.onReplacementStart) this.onReplacementStart(kwargs);
    
    var nodes = kwargs.elements || dom.querySelectorAll(kwargs.selector);
    if(nodes.length == 0) return;
    
    var src             = getSource(kwargs.src);
    var css             = util.convertCssArg(kwargs.css);
    var filters         = getFilters(kwargs.filters);
    
    var forceSingleLine = kwargs.forceSingleLine === true;
    var preventWrap     = kwargs.preventWrap === true && !forceSingleLine;
    var fitExactly      = forceSingleLine || (kwargs.fitExactly == null ? this.fitExactly : kwargs.fitExactly) === true;
    var forceWidth      = fitExactly || (kwargs.forceWidth == null ? this.forceWidth : kwargs.forceWidth) === true;
    var ratios          = kwargs.ratios || [];
    var pixelFont       = kwargs.pixelFont === true;
    var tuneHeight      = parseInt(kwargs.tuneHeight) || 0;
    var events          = !!kwargs.onRelease || !!kwargs.onRollOver || !!kwargs.onRollOut;
    
    // Alignment should be handled by the browser in this case.
    if(fitExactly) util.extractFromCss(css, '.sIFR-root', 'text-align', true);
    
    var fontSize        = util.extractFromCss(css, '.sIFR-root', 'font-size', true)        || '0';
    var backgroundColor = util.extractFromCss(css, '.sIFR-root', 'background-color', true) || '#FFFFFF';
    var kerning         = util.extractFromCss(css, '.sIFR-root', 'kerning', true)          || '';
    var opacity         = util.extractFromCss(css, '.sIFR-root', 'opacity', true)          || '100';
    var cursor          = util.extractFromCss(css, '.sIFR-root', 'cursor', true)           || 'default';
    var leading         = parseInt(util.extractFromCss(css, '.sIFR-root', 'leading'))      || 0;
    var gridFitType     = kwargs.gridFitType ||
                            (util.extractFromCss(css, '.sIFR-root', 'text-align') == 'right') ? 'subpixel' : 'pixel';
    var textTransform   = this.forceTextTransform === false 
                            ? 'none'
                            : util.extractFromCss(css, '.sIFR-root', 'text-transform', true) || 'none';
    // Only font sizes specified in pixels are supported.
    fontSize            = /^\d+(px)?$/.test(fontSize) ? parseInt(fontSize) : 0;
    // Make sure to support percentages and decimals
    opacity             = parseFloat(opacity) < 1 ? 100 * parseFloat(opacity) : opacity;
    
    var cssText = kwargs.modifyCss ? '' : util.cssToString(css);
    var wmode   = kwargs.wmode || '';
    if(!wmode) {
      if(kwargs.transparent) wmode = 'transparent';
      else if(kwargs.opaque) wmode = 'opaque';
    } 
    if(wmode == 'transparent') {
      if(!ua.transparencySupport) wmode = 'opaque';
      else backgroundColor = 'transparent';
    } else if(backgroundColor == 'transparent') {
      backgroundColor = '#FFFFFF';
    }
    
    for(var i = 0; i < nodes.length; i++) {
      var node = nodes[i];
      
      if(dom.hasOneOfClassses(ClassNames.IGNORE_CLASSES, node) || dom.ancestorHasClass(node, ClassNames.ALTERNATE)) continue;
      
      // Opera does not allow communication with hidden Flash movies. Visibility is tackled by sIFR itself, but
      // `display:none` isn't. Additionally, WebKit does not return computed style information for elements with
      // `display:none`. We'll prevent elements which have `display:none` or are contained in such an element from
      // being replaced. It's a bit hard to detect this, but we'll check for the dimensions of the element and its
      // `display` property.
      
      var dimensions = dom.getDimensions(node);
      var height     = dimensions.height;
      var width      = dimensions.width;
      var display    = dom.getComputedStyle(node, 'display');
      
      if(!height || !width || !display || display == 'none') continue;
      
      // Get the width (to approximate the final size).
      width = dom.getWidthFromStyle(node);
      
      var size, lines;
      if(!fontSize) {
        var calculation    = calculate(node);
        size               = Math.min(this.MAX_FONT_SIZE, Math.max(this.MIN_FONT_SIZE, calculation.fontSize));
        if(pixelFont) size = Math.max(8, 8 * Math.round(size / 8));
        
        lines = calculation.lines;
      } else {
        size  = fontSize;
        lines = 1;
      }
      
      var alternate = dom.create('span', ClassNames.ALTERNATE);
      // Clone the original content to the alternate element.
      var contentNode = node.cloneNode(true);
      // Temporarily append the contentNode to the document, to get around IE problems with resolved hrefs
      node.parentNode.appendChild(contentNode);
      for(var j = 0, l = contentNode.childNodes.length; j < l; j++) {
        var child = contentNode.childNodes[j];
        // Let's not keep <style> or <script> in the alternate content, since it may be
        // reintroduced to the DOM after resizing.
        if (!/^(style|script)$/i.test(child.nodeName)) {
          alternate.appendChild(child.cloneNode(true));
        }
      }
      
      // Allow the sIFR content to be modified
      if(kwargs.modifyContent) kwargs.modifyContent(contentNode, kwargs.selector);
      if(kwargs.modifyCss) cssText = kwargs.modifyCss(css, contentNode, kwargs.selector);
      
      var content = parseContent(contentNode, textTransform, kwargs.uriEncode);
      // Remove the contentNode again
      contentNode.parentNode.removeChild(contentNode);
      if(kwargs.modifyContentString) content.text = kwargs.modifyContentString(content.text, kwargs.selector);
      if(content.text == '') continue;
      
      // Approximate the final height to avoid annoying movements of the page
      var renderHeight = Math.round(lines * getRatio(size, ratios) * size) + this.FLASH_PADDING_BOTTOM + tuneHeight;
      if (lines > 1 && leading) {
        renderHeight += Math.round((lines - 1) * leading);
      }
      
      var forcedWidth = forceWidth ? width : '100%';
      
      var id   = 'sIFR_replacement_' + elementCount++;
      var vars = ['id='              + id,
                  'content='         + util.escape(content.text),
                  'width='           + width,
                  'renderheight='    + renderHeight, 
                  'link='            + util.escape(content.primaryLink.href   || ''),
                  'target='          + util.escape(content.primaryLink.target || ''),
                  'size='            + size, 
                  'css='             + util.escape(cssText),
                  'cursor='          + cursor,
                  'tunewidth='       + (kwargs.tuneWidth || 0),
                  'tuneheight='      + tuneHeight,
                  'offsetleft='      + (kwargs.offsetLeft || ''),
                  'offsettop='       + (kwargs.offsetTop  || ''),
                  'fitexactly='      + fitExactly,
                  'preventwrap='     + preventWrap,
                  'forcesingleline=' + forceSingleLine,
                  'antialiastype='   + (kwargs.antiAliasType || ''),
                  'thickness='       + (kwargs.thickness || ''),
                  'sharpness='       + (kwargs.sharpness || ''),
                  'kerning='         + kerning,
                  'gridfittype='     + gridFitType,
                  'flashfilters='    + filters,
                  'opacity='         + opacity,
                  'blendmode='       + (kwargs.blendMode || ''), 
                  'selectable='      + (kwargs.selectable == null || wmode != '' && !sIFR.ua.macintosh && sIFR.ua.gecko && sIFR.ua.geckoVersion >= sIFR.ua.parseVersion('1.9')
                                         ? 'true' 
                                         : kwargs.selectable === true
                                       ),
                  'fixhover='        + (this.fixHover === true),
                  'events='          + events,
                  'delayrun='        + hacks.brokenFlashIE.fixFlash,
                  'version='         + this.VERSION];
      
      var encodedVars = util.encodeVars(vars);
      var interactor  = new FlashInteractor(self, id, vars, forceWidth, {
        onReplacement: kwargs.onReplacement,
        onRollOver: kwargs.onRollOver,
        onRollOut: kwargs.onRollOut,
        onRelease: kwargs.onRelease
      });
      interactor.movie = MovieCreator.create(
        sIFR, hacks.brokenFlashIE, node, ua.fixFocus && kwargs.fixFocus, 
        id, src, forcedWidth, renderHeight, 
        encodedVars, wmode, backgroundColor
      );
      this.replacements.push(interactor);
      this.replacements[id] = interactor;
      if(kwargs.selector) {
        if(!this.replacements[kwargs.selector]) this.replacements[kwargs.selector] = [interactor];
        else this.replacements[kwargs.selector].push(interactor);
      }
      alternate.setAttribute('id', id + '_alternate');
      node.appendChild(alternate);
      dom.addClass(ClassNames.REPLACED, node);
    }
    
    hacks.fragmentIdentifier.restore();
  };
  
  this.getReplacementByFlashElement = function(node) {
    for(var i = 0; i < self.replacements.length; i++) {
      if(self.replacements[i].id == node.getAttribute('id')) return self.replacements[i];
    }
  };
  
  this.redraw = function() {
    for(var i = 0; i < self.replacements.length; i++) self.replacements[i].resetMovie();
  };
  
  this.prepareClearReferences = function() {
    hacks.brokenFlashIE.prepareClearReferences();
  };
  
  this.clearReferences = function() {
    hacks.brokenFlashIE.clearReferences();
    hacks = null;
    replaceKwargsStore = null;
    delete self.replacements;
  };
  
  // The goal here is not to prevent usage of the Flash movie, but running sIFR on possibly translated pages
  function isValidDomain() {
    if(self.domains.length == 0) return true;
    
    var domain = util.domain();
    for(var i = 0; i < self.domains.length; i++) {
      if(util.domainMatches(domain, self.domains[i])) {
        return true;
      }
    }
    
    return false;
  }
  
  function isFile() {
    if(document.location.protocol == 'file:') {
      if(self.debug) self.errors.fire('isFile');
      return true;
    }
    return false;
  }
  
  function getSource(src) {
    if(ua.ie && src.charAt(0) == '/') {
      src = window.location.toString().replace(/([^:]+)(:\/?\/?)([^\/]+).*/, '$1$2$3') + src;
    }
    
    return src;
  }
  
  // Gives a font-size to required vertical space ratio
  function getRatio(size, ratios) {
    for(var i = 0; i < ratios.length; i += 2) {
      if(size <= ratios[i]) return ratios[i + 1];
    }
    return ratios[ratios.length - 1] || 1;
  }
  
  function getFilters(obj) {
    var filters = [];
    for(var filter in obj) {
      if(obj[filter] == Object.prototype[filter]) continue;
      
      var properties = obj[filter];
      filter = [filter.replace(/filter/i, '') + 'Filter'];
      
      for(var property in properties) {
        if(properties[property] == Object.prototype[property]) continue;
        // Double-escaping (see end of function) makes it easier to parse the resulting string
        // in AS.
        filter.push(property + ':' + util.escape(util.toJson(properties[property], util.toHexString)));
      }
      
      filters.push(filter.join(','));
    }
    
    return util.escape(filters.join(';'));
  }
  
  function resize(evt) {
    var current  = resize.viewport;
    var viewport = dom.getViewport();
    
    if(current && viewport.width == current.width && viewport.height == current.height) return;
    resize.viewport = viewport;
    
    if(self.replacements.length == 0) return; // Nothing replaced yet, resize event is not important.
    
    if(resize.timer) clearTimeout(resize.timer);
    resize.timer = setTimeout(function() {
      delete resize.timer;
      for(var i = 0; i < self.replacements.length; i++) self.replacements[i].resize();
    }, 200);
  }
  
  function calculate(node) {
    var fontSize = dom.getComputedStyle(node, 'fontSize');
    var deduce = fontSize.indexOf('px') == -1;
    
    var html = node.innerHTML;
    if (deduce) {
      node.innerHTML = 'X';
    }
    
    // Reset padding and border, so offsetHeight works properly
    node.style.paddingTop = node.style.paddingBottom = node.style.borderTopWidth = node.style.borderBottomWidth = '0px';
    // 2em magically makes offsetHeight correct in IE
    node.style.lineHeight = '2em';
    // Provided display is block
    node.style.display = 'block';
    
    fontSize = deduce ? node.offsetHeight / 2 : parseInt(fontSize, 10);
    
    if (deduce) {
      node.innerHTML = html;
    }
    
    var lines = Math.round(node.offsetHeight / (2 * fontSize));
    
    node.style.paddingTop = node.style.paddingBottom = node.style.borderTopWidth = node.style.borderBottomWidth
                          = node.style.lineHeight = node.style.display = '';
    
    if (isNaN(lines) || !isFinite(lines) || lines == 0) {
      lines = 1;
    }
    
    return {fontSize: fontSize, lines: lines};
  }
  
  function parseContent(source, textTransform, uriEncode) {
    uriEncode = uriEncode || util.uriEncode;
    var stack = [], content = [];
    var primaryLink = null;
    var nodes = source.childNodes;
    var whiteSpaceEnd = false, firstText = false;
    
    var i = 0;
    while(i < nodes.length) {
      var node = nodes[i];
      
      if(node.nodeType == 3) {
        var text = util.textTransform(textTransform, util.normalize(node.nodeValue)).replace(/</g, '&lt;');
        if(whiteSpaceEnd && firstText) text = text.replace(/^\s+/, '');
        content.push(text);
        whiteSpaceEnd = /\s$/.test(text);
        firstText = false;
      }
      
      if(node.nodeType == 1 && !/^(style|script)$/i.test(node.nodeName)) {
        var attributes = [];
        var nodeName   = node.nodeName.toLowerCase();
        var className  = node.className || '';
        // If there are multiple classes, look for the specified sIFR class
        if(/\s+/.test(className)) {
          if(className.indexOf(ClassNames.CLASS) > -1) className = className.match('(\\s|^)' + ClassNames.CLASS + '-([^\\s$]*)(\\s|$)')[2];
          // or use the first class. This is because Flash does not support the use of multiple class names.
          // Flash doesn't support IDs either.
          else className = className.match(/^([^\s]+)/)[1];
        }
        if(className != '') attributes.push('class="' + className + '"');
        
        if(nodeName == 'a') {
          var href   = uriEncode(node.getAttribute('href') || '');
          var target = node.getAttribute('target') || '';
          attributes.push('href="' + href + '"', 'target="' + target + '"');
          
          if(!primaryLink) {
            primaryLink = {
              href: href,
              target: target
            };
          }
        }
        
        content.push('<' + nodeName + (attributes.length > 0 ? ' ' : '') + attributes.join(' ') + '>');
        firstText = true;
        
        if(node.hasChildNodes()) {
          // Push the current index to the stack and prepare to iterate
          // over the childNodes.
          stack.push(i);
          i = 0;
          nodes = node.childNodes;
          continue;
        } else if(!/^(br|img)$/i.test(node.nodeName)) content.push('</', node.nodeName.toLowerCase(), '>');
      }
      
      if(stack.length > 0 && !node.nextSibling) {
        // Iterating the childNodes has been completed. Go back to the position
        // before we started the iteration. If that position was the last child,
        // go back even further.
        do {
          i = stack.pop();
          nodes = node.parentNode.parentNode.childNodes;
          node = nodes[i];
          if(node) content.push('</', node.nodeName.toLowerCase(), '>');
        } while(i == nodes.length - 1 && stack.length > 0);
      }
      
      i++;
    }
    
    return {text: content.join('').replace(/^\s+|\s+$|\s*(<br>)\s*/g, '$1'), primaryLink: primaryLink || {}};
  }
};

/*=:project
    parseSelector 2.0.2
    
  =:description
    Provides an extensible way of parsing CSS selectors against a DOM in 
    JavaScript.

  =:file
    Copyright: 2006-2008 Mark Wubben.
    Author: Mark Wubben, <http://novemberborn.net/>
       
  =:license
    This software is licensed and provided under the CC-GNU LGPL. 
    See <http://creativecommons.org/licenses/LGPL/2.1/>
    
  =:support
    parseSelector supports the following user agents:
      * Internet Explorer 6 and above
      * Firefox 1.0 and above, and equivalent Gecko engine versions
      * Safari 2.0 and above
      * Opera 8.0 and above
      * Konqueror 3.5.5 and above
    It might work in other browsers and versions, but there are no guarantees. There is
    no verification made when parseSelector is run to ascertain the browser is supported.
  
  =:notes
    The parsing of CSS selectors as streams has been based on Dean Edwards
    excellent work with cssQuery. See <http://dean.edwards.name/my/cssQuery/>
    for more info.
*/

var parseSelector = (function() {
  var SEPERATOR       = /\s*,\s*/
  var WHITESPACE      = /\s*([\s>+~(),]|^|$)\s*/g;
  var IMPLIED_ALL     = /([\s>+~,]|[^(]\+|^)([#.:@])/g;
  var STANDARD_SELECT = /(^|\))[^\s>+~]/g;
  var INSERT_SPACE    = /(\)|^)/;
  var STREAM          = /[\s#.:>+~()@]|[^\s#.:>+~()@]+/g;
  
  function parseSelector(selector, node) {
    node = node || document.documentElement;
    var argSelectors = selector.split(SEPERATOR), result = [];
    
    for(var i = 0; i < argSelectors.length; i++) {
      var nodes = [node], stream = toStream(argSelectors[i]);
      for(var j = 0; j < stream.length;) {
        var token = stream[j++], filter = stream[j++], args = '';
        if(stream[j] == '(') {
          while(stream[j++] != ')' && j < stream.length) args += stream[j];
          args = args.slice(0, -1);
        }
        nodes = select(nodes, token, filter, args);
      }
      result = result.concat(nodes);
    }
    
    return result;
  }

  function toStream(selector) {
    var stream = selector.replace(WHITESPACE, '$1').replace(IMPLIED_ALL, '$1*$2').replace(STANDARD_SELECT, insertSpaces);
    return stream.match(STREAM) || [];
  }
  
  function insertSpaces(str) {
    return str.replace(INSERT_SPACE, '$1 ');
  }
  
  function select(nodes, token, filter, args) {
    return (parseSelector.selectors[token]) ? parseSelector.selectors[token](nodes, filter, args) : [];
  }
  
  var util = {
    toArray: function(enumerable) {
      var a = [];
      for(var i = 0; i < enumerable.length; i++) a.push(enumerable[i]);
      return a;
    }
  };
  
  var dom = {
    isTag: function(node, tag) {
      return (tag == '*') || (tag.toLowerCase() == node.nodeName.toLowerCase());
    },
  
    previousSiblingElement: function(node) {
      do node = node.previousSibling; while(node && node.nodeType != 1);
      return node;
    },
  
    nextSiblingElement: function(node) {
      do node = node.nextSibling; while(node && node.nodeType != 1);
      return node;
    },
  
    hasClass: function(name, node) {
      return (node.className || '').match('(^|\\s)'+name+'(\\s|$)');
    },
  
    getByTag: function(tag, node) {
      return node.getElementsByTagName(tag);
    }
  };

  var selectors = {
    '#': function(nodes, filter) {
      for(var i = 0; i < nodes.length; i++) {
        if(nodes[i].getAttribute('id') == filter) return [nodes[i]];
      }
      return [];
    },

    ' ': function(nodes, filter) {
      var result = [];
      for(var i = 0; i < nodes.length; i++) {
        result = result.concat(util.toArray(dom.getByTag(filter, nodes[i])));
      }
      return result;
    },
    
    '>': function(nodes, filter) {
      var result = [];
      for(var i = 0, node; i < nodes.length; i++) {
        node = nodes[i];
        for(var j = 0, child; j < node.childNodes.length; j++) {
          child = node.childNodes[j];
          if(child.nodeType == 1 && dom.isTag(child, filter)) result.push(child);
        }
      }
      return result;
    },

    '.': function(nodes, filter) {
      var result = [];
      for(var i = 0, node; i < nodes.length; i++) {
        node = nodes[i];
        if(dom.hasClass([filter], node)) result.push(node);
      }
      return result;
    }, 
        
    ':': function(nodes, filter, args) {
      return (parseSelector.pseudoClasses[filter]) ? parseSelector.pseudoClasses[filter](nodes, args) : [];
    }
    
  };

  parseSelector.selectors     = selectors;
  parseSelector.pseudoClasses = {};
  parseSelector.util          = util;
  parseSelector.dom           = dom;

  return parseSelector;
})();
/*****************************************************************************
It is adviced to place the sIFR JavaScript calls in this file, keeping it
separate from the `sifr.js` file. That way, you can easily swap the `sifr.js`
file for a new version, while keeping the configuration.

You must load this file *after* loading `sifr.js`.

That said, you're of course free to merge the JavaScript files. Just make sure
the copyright statement in `sifr.js` is kept intact.
*****************************************************************************/

// Make an object pointing to the location of the Flash movie on your web server.
// Try using the font name as the variable name, makes it easy to remember which
// object you're using. As an example in this file, we'll use Futura.
var adgrotesk = { src: '/resources/swf/sifr/sifr_iwg.swf' };

// Now you can set some configuration settings.
// See also <http://wiki.novemberborn.net/sifr3/JavaScript+Configuration>.
// One setting you probably want to use is `sIFR.useStyleCheck`. Before you do that,
// read <http://wiki.novemberborn.net/sifr3/DetectingCSSLoad>.

// sIFR.useStyleCheck = true;

// Next, activate sIFR:
sIFR.activate(adgrotesk);

// If you want, you can use multiple movies, like so:
//
//    var futura = { src: '/path/to/futura.swf' };
//    var garamond = { src '/path/to/garamond.swf' };
//    var rockwell = { src: '/path/to/rockwell.swf' };
//    
//    sIFR.activate(futura, garamond, rockwell);
//
// Remember, there must be *only one* `sIFR.activate()`!

// Now we can do the replacements. You can do as many as you like, but just
// as an example, we'll replace all `<h1>` elements with the Futura movie.
// 
// The first argument to `sIFR.replace` is the `futura` object we created earlier.
// The second argument is another object, on which you can specify a number of
// parameters or "keyword arguemnts". For the full list, see "Keyword arguments"
// under `replace(kwargs, mergeKwargs)` at 
// <http://wiki.novemberborn.net/sifr3/JavaScript+Methods>.
// 
// The first argument you see here is `selector`, which is a normal CSS selector.
// That means you can also do things like '#content h1' or 'h1.title'.
//
// The second argument determines what the Flash text looks like. The main text
// is styled via the `.sIFR-root` class. Here we've specified `background-color`
// of the entire Flash movie to be a light grey, and the `color` of the text to
// be red. Read more about styling at <http://wiki.novemberborn.net/sifr3/Styling>.

sIFR.replace(adgrotesk, {
  selector: '.intro-start',
  css: ['.sIFR-root {background-color:#f5f2e5; color:#2d72cc; leading:-3}', '.sIFR-root a { color:#2D72CC; }', '.sIFR-root a:hover { color:#2D72CC; text-decoration: underline; }'],
  wmode: 'transparent'
});

sIFR.replace(adgrotesk, {
  selector: '.txt-box-grey',
  css: '.sIFR-root {background-color:#c4c0b5; color:#ffffff; font-size: 17px; leading:-7}',
  wmode: 'transparent'
});

sIFR.replace(adgrotesk, {
	  selector: '.txt-box-grey-video',
	  css: '.sIFR-root {background-color:#c4c0b5; color:#ffffff; font-size: 14px; leading:-7}',
	  wmode: 'transparent'
	});
/*
sIFR.replace(adgrotesk, {
  selector: '.txt-box-blue',
  css: '.sIFR-root {background-color:#abc7eb; color:#ffffff; leading:-7}'
});
*/
/*sIFR.replace(adgrotesk, {
  selector: '.column-right .color-blue h3',
  css: '.sIFR-root {background-color:#abc7eb; color:#ffffff; leading:-11}'
});

sIFR.replace(adgrotesk, {
  selector: '.column-right .color-green h3',
  css: '.sIFR-root {background-color:#b1c075; color:#ffffff; leading:-11}'
});

sIFR.replace(adgrotesk, {
  selector: '.column-right .color-red h3',
  css: '.sIFR-root {background-color:#f1baad; color:#ffffff; leading:-11}'
});*/

sIFR.replace(adgrotesk, {
  selector: '.column-right .my-account h4',
  css: '.sIFR-root {background-color:#db5233; color:#ffffff; leading:-11}',
  wmode: 'transparent'
});

// Tooltip Object
var Tooltip = Class.create();
Tooltip.prototype = {
	initialize: function(el, options) {
		this.el = $(el);
		this.initialized = false;
		this.setOptions(options);
		
		// Event handlers
		this.showEvent = this.show.bindAsEventListener(this);
		this.hideEvent = this.hide.bindAsEventListener(this);
		this.updateEvent = this.update.bindAsEventListener(this);
		Event.observe(this.el, "mouseover", this.showEvent );
		Event.observe(this.el, "mouseout", this.hideEvent );
		
		// Removing title from DOM element to avoid showing it
		this.content = this.el.title;
		this.el.title = "";

		// If descendant elements has 'alt' attribute defined, clear it
		this.el.descendants().each(function(el){
			if(Element.readAttribute(el, 'alt'))
				el.alt = "";
		});
	},
	setOptions: function(options) {
		this.options = {
			backgroundColor: '#999', // Default background color
			borderColor: '#666', // Default border color
			textColor: '', // Default text color (use CSS value)
			textShadowColor: '', // Default text shadow color (use CSS value)
			maxWidth: 250,	// Default tooltip width
			align: "left", // Default align
			delay: 0, // Default delay before tooltip appears in ms
			mouseFollow: true, // Tooltips follows the mouse moving
			opacity: .75, // Default tooltips opacity
			appearDuration: .25, // Default appear duration in sec
			hideDuration: .25 // Default disappear duration in sec
		};
		Object.extend(this.options, options || {});
	},
	show: function(e) {
		this.xCord = Event.pointerX(e);
		this.yCord = Event.pointerY(e);
		if(!this.initialized)
			this.timeout = window.setTimeout(this.appear.bind(this), this.options.delay);
	},
	hide: function(e) {
		if(this.initialized) {
			this.appearingFX.cancel();
			if(this.options.mouseFollow)
				Event.stopObserving(this.el, "mousemove", this.updateEvent);
			new Effect.Fade(this.tooltip, {duration: this.options.hideDuration, afterFinish: function() { Element.remove(this.tooltip) }.bind(this) });
		}
		this._clearTimeout(this.timeout);
		
		this.initialized = false;
	},
	update: function(e){
		this.xCord = Event.pointerX(e);
		this.yCord = Event.pointerY(e);
		this.setup();
	},
	appear: function() {
		// Building tooltip container
		this.tooltip = Builder.node("div", {className: "tooltip", style: "display: none;" }, [
			Builder.node("div", {className:"xtop"}, [
				Builder.node("div", {className:"xb1", style:"background-color:" + this.options.borderColor + ";"}),
				Builder.node("div", {className:"xb2", style: "background-color:" + this.options.backgroundColor + "; border-color:" + this.options.borderColor + ";"}),
				Builder.node("div", {className:"xb3", style: "background-color:" + this.options.backgroundColor + "; border-color:" + this.options.borderColor + ";"}),
				Builder.node("div", {className:"xb4", style: "background-color:" + this.options.backgroundColor + "; border-color:" + this.options.borderColor + ";"})
			]),
			Builder.node("div", {className: "xboxcontent", style: "background-color:" + this.options.backgroundColor + 
				"; border-color:" + this.options.borderColor + 
				((this.options.textColor != '') ? "; color:" + this.options.textColor : "") + 
				((this.options.textShadowColor != '') ? "; text-shadow:2px 2px 0" + this.options.textShadowColor + ";" : "")}, this.content), 
			Builder.node("div", {className:"xbottom"}, [
				Builder.node("div", {className:"xb4", style: "background-color:" + this.options.backgroundColor + "; border-color:" + this.options.borderColor + ";"}),
				Builder.node("div", {className:"xb3", style: "background-color:" + this.options.backgroundColor + "; border-color:" + this.options.borderColor + ";"}),
				Builder.node("div", {className:"xb2", style: "background-color:" + this.options.backgroundColor + "; border-color:" + this.options.borderColor + ";"}),
				Builder.node("div", {className:"xb1", style:"background-color:" + this.options.borderColor + ";"})
			]),
		]);
		document.body.insertBefore(this.tooltip, document.body.childNodes[0]);
		
		Element.extend(this.tooltip); // IE needs element to be manually extended
		this.options.width = this.tooltip.getWidth();
		this.tooltip.style.width = this.options.width + 'px'; // IE7 needs width to be defined
		
		this.setup();
		
		if(this.options.mouseFollow)
			Event.observe(this.el, "mousemove", this.updateEvent);
			
		this.initialized = true;
		this.appearingFX = new Effect.Appear(this.tooltip, {duration: this.options.appearDuration, to: this.options.opacity });
	},
	setup: function(){
		// If content width is more then allowed max width, set width to max
		if(this.options.width > this.options.maxWidth) {
			this.options.width = this.options.maxWidth;
			this.tooltip.style.width = this.options.width + 'px';
		}
			
		// Tooltip doesn't fit the current document dimensions
		if(this.xCord + this.options.width >= Element.getWidth(document.body)) {
			this.options.align = "right";
			this.xCord = this.xCord - this.options.width + 20;
		}
		
		this.tooltip.style.left = this.xCord - 7 + "px";
		this.tooltip.style.top = this.yCord + 12 + "px";
	},
	_clearTimeout: function(timer) {
		clearTimeout(timer);
		clearInterval(timer);
		return null;
	}
};
/**
 * BasicClass
 * root-Klasse fuer alle JS-Klassen von der Anwendung
 * Stellt allgemeine Funktionalitaeten zur Verfuegung, die
 * in jeder Klasse verwendet werden koennen
 */
var BasicClass = Class.create();
/**
 * AjaxHelper
 * Stellt statische Methoden zum Handling eines AJAX-Response
 * zur Verfuegung
 * Beispielverwendung:
   
   new Ajax.Request('path', {
		method: 'post',
		parameters: '',
		onSuccess: function(x) {
			AjaxHelper.requestSuccess(x, messageElem, doAfterSucces, doAfterError, callAfterLogin);
		}
		onFailure: function(x) {
			AjaxHelper.onFailure(messageElem);
		}
	});
	 
 */
var AjaxHelper = Class.create({
	
	regLoginData: Object(),

	/**
	 * requestSuccess()
	 * Es wurde ein 2xx-Header geantwortet
	 * requestSuccess wertet die Antwort aus
	 * @param x				Prototype-Daten
	 * @param messageElem	Id des Elements, in dem die Erfolgs- oder Fehlermeldung
	 *						angezeigt werden soll. Ist der Wert 'modal' wird die
	 *						Nachricht im ModalFenster angezeigt
	 * @param successCallback	Callback-Funktion, nicht bei fehlerfreien Daten ausgefuehrt wird
	 * @param errorCallback	Callback-Funktion, die bei fehlerhaften Daten ausgefuehrt wird
	 * @param overrideSystemMessageOptions Fuer die Anzeige der System-Messages koennen verschiedenen
	 						Eigenschaften angegeben werden. Dabei koennen folgende Standardwerte
	 						ueberschrieben werden
	 						hideSuccessMessageBoxAfter : 5
	 						showSuccessMessage : true
	 						Die Werte koennen mit einer {key:value} Liste ueberschrieben werden
	 * @param callAfterLogin Zeiger auf die Methode, die nach einem erfolgreichen Login ausgefuehrt wird
	 						 Dieser Parameter ist nur ein Zeiger auf die aufrufende Methode des AJAX-Requests,
	 						 um nach einem Login diese erneut starten zu koennen
	 */
	requestSuccess : function(x, messageElem, successCallback, errorCallback, overrideSystemMessageOptions, callAfterLogin, callingArguments) {
		// Standardeinstellungen fuer die Darstellung der System-
		// messages
		var systemMessageOptions = new Hash();
		systemMessageOptions.set('hideSuccessMessageBoxAfter', 10);
		systemMessageOptions.set('showSuccessMessage', true);
		systemMessageOptions.set('showErrorMessage', true);
		
		var messageElemTemp = $(messageElem);
		if (messageElemTemp) {
			messageElemTemp.hide();
		}
		
		// Standardeinstellungen ueberschreiben, falls gesetzt
		overrideSystemMessageOptions = new Hash(overrideSystemMessageOptions);
		if(overrideSystemMessageOptions != undefined) {
			overrideSystemMessageOptions.each(function(pair) {
				systemMessageOptions.set(pair.key, pair.value);
			});
		}
		
		// JSON-Response. Wird automatisch von prototype geparst
		if(x.responseJSON == undefined)
			jsonResponse = x.evalJSON();
		else
			jsonResponse = x.responseJSON;

		// Hier werden nur Fehler im JSON selbst oder
		// 500er auf dem Server abgefangen
		// Der JSON-Code ist nicht valide oder
		// es ist ein fehler auf dem Server aufgetreten
		if(jsonResponse == null || jsonResponse.status == '0' || jsonResponse.status == undefined) {
			this._ShowStandardMessage('error', 'Es ist ein Systemfehler aufgetreten.' + ((jsonResponse == null) ? ' ' + jsonResponse.message : ''));
			return;
		}

		// Der AJAX-Call hat funktioniert. Jetzt wird
		// geprueft, ob ein semantischer Fehler aufgetreten ist
		if(jsonResponse.status == '2') {

			// Wenn als Element modal angegeben wurde, den Fehler
			// im ModalWindow ausgeben
			if(messageElem == 'modal' || (!$(messageElem) && !errorCallback)) {
				this._ShowStandardMessage('error', jsonResponse.message, systemMessageOptions);
			} else {
				this._showSystemMessageInElement(messageElem, 'error', jsonResponse.message, systemMessageOptions);
			}
			// Auch wenn prototype selbst erkennt, wenn der Response-Code
			// JS enthaelt und diesen direkt mit eval ausfuehrt, wird hier
			// mit Callback-Fkt. gearbeitet, um Backend und Frontend klar
			// zu trennen
			if(errorCallback != undefined && errorCallback != null)
				errorCallback.apply(this, Object.values(jsonResponse.callbackData));

			return;

		}
		
		// Der User ist nicht eingeloggt, es wird das Registrieren-
		// Overlay angezeigt
		if(jsonResponse.status == '3') {
			currentOverlay = new Dialog.Box('loginFormOverlay', '');
			currentOverlay.show();
			Event.observe('loginButton', 'click', function() {
				sessionUpdate.loginThroughRegLogin(callAfterLogin, callingArguments);
			});
			return;
		}		


		// hat funktioniert (status is 1), gruene message zeigen
		if(messageElem == 'modal' || !$(messageElem))
			this._ShowStandardMessage('success', jsonResponse.message, systemMessageOptions);
		else
			this._showSystemMessageInElement(messageElem, 'success', jsonResponse.message, systemMessageOptions);
		
		if(successCallback != "undefined") {
			successCallback.apply(this, Object.values(jsonResponse.callbackData));
		}
	},
	
	onFailure : function(messageElem) {
		if(messageElem == 'modal' || !$(messageElem))
			this._ShowStandardMessage('error', 'Es ist ein Systemfehler aufgetreten.');
		else
			this._showSystemMessageInElement(messageElem, 'error', 'Es ist ein Systemfehler aufgetreten.');
	},

	_showSystemMessageInElement : function(messageElem, type, text, systemMessageOptions) {

		if(!systemMessageOptions.get('showSuccessMessage') && type == 'success'){
			return;
		}
			
		if(!systemMessageOptions.get('showErrorMessage') && type == 'error') {
			return;
		}
		$(messageElem).removeClassName('errorMessage');
		$(messageElem).removeClassName('successMessage');
		
		$(messageElem).addClassName(type + 'Message');

		$(messageElem).hide();

		$(messageElem).update('<div>' + text + '</div>');
		
		$(messageElem).show();
		//new Effect.BlindDown(messageElem);
		
		if(systemMessageOptions.get('hideSuccessMessageBoxAfter') > 0)
			this._BlindUpFunction.delay(systemMessageOptions.get('hideSuccessMessageBoxAfter'), messageElem);
	},
	
	_ShowStandardMessage : function(type, text, systemMessageOptions) {
		
		if(!systemMessageOptions.get('showSuccessMessage') && type == 'success')
			return;
	
		if(!systemMessageOptions.get('showErrorMessage') && type == 'error')
			return;
		
		currentOverlay = new Dialog.Box('', 'text', null, null, null, text);
		currentOverlay.show();
		/*Event.observe('loginButton', 'click', function() {
			sessionUpdate.loginThroughRegLogin(callAfterLogin);
		});*/
		
	},
	
	_BlindUpFunction : function(elem) {
		$(elem).hide();
		//new Effect.BlindUp(elem);
	}

});

var aHO = new AjaxHelper();
/*
 * A JavaScript implementation of the Secure Hash Algorithm, SHA-1, as defined
 * in FIPS PUB 180-1
 * Version 2.1a Copyright Paul Johnston 2000 - 2002.
 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
 * Distributed under the BSD License
 * See http://pajhome.org.uk/crypt/md5 for details.
 */

/*
 * Configurable variables. You may need to tweak these to be compatible with
 * the server-side, but the defaults work in most cases.
 */
var hexcase = 0;  /* hex output format. 0 - lowercase; 1 - uppercase        */
var b64pad  = ""; /* base-64 pad character. "=" for strict RFC compliance   */
var chrsz   = 8;  /* bits per input character. 8 - ASCII; 16 - Unicode      */

/*
 * These are the functions you'll usually want to call
 * They take string arguments and return either hex or base-64 encoded strings
 */
function hex_sha1(s){return binb2hex(core_sha1(str2binb(s),s.length * chrsz));}
function b64_sha1(s){return binb2b64(core_sha1(str2binb(s),s.length * chrsz));}
function str_sha1(s){return binb2str(core_sha1(str2binb(s),s.length * chrsz));}
function hex_hmac_sha1(key, data){ return binb2hex(core_hmac_sha1(key, data));}
function b64_hmac_sha1(key, data){ return binb2b64(core_hmac_sha1(key, data));}
function str_hmac_sha1(key, data){ return binb2str(core_hmac_sha1(key, data));}

/*
 * Perform a simple self-test to see if the VM is working
 */
function sha1_vm_test()
{
  return hex_sha1("abc") == "a9993e364706816aba3e25717850c26c9cd0d89d";
}

/*
 * Calculate the SHA-1 of an array of big-endian words, and a bit length
 */
function core_sha1(x, len)
{
  /* append padding */
  x[len >> 5] |= 0x80 << (24 - len % 32);
  x[((len + 64 >> 9) << 4) + 15] = len;

  var w = Array(80);
  var a =  1732584193;
  var b = -271733879;
  var c = -1732584194;
  var d =  271733878;
  var e = -1009589776;

  for(var i = 0; i < x.length; i += 16)
  {
    var olda = a;
    var oldb = b;
    var oldc = c;
    var oldd = d;
    var olde = e;

    for(var j = 0; j < 80; j++)
    {
      if(j < 16) w[j] = x[i + j];
      else w[j] = rol(w[j-3] ^ w[j-8] ^ w[j-14] ^ w[j-16], 1);
      var t = safe_add(safe_add(rol(a, 5), sha1_ft(j, b, c, d)),
                       safe_add(safe_add(e, w[j]), sha1_kt(j)));
      e = d;
      d = c;
      c = rol(b, 30);
      b = a;
      a = t;
    }

    a = safe_add(a, olda);
    b = safe_add(b, oldb);
    c = safe_add(c, oldc);
    d = safe_add(d, oldd);
    e = safe_add(e, olde);
  }
  return Array(a, b, c, d, e);

}

/*
 * Perform the appropriate triplet combination function for the current
 * iteration
 */
function sha1_ft(t, b, c, d)
{
  if(t < 20) return (b & c) | ((~b) & d);
  if(t < 40) return b ^ c ^ d;
  if(t < 60) return (b & c) | (b & d) | (c & d);
  return b ^ c ^ d;
}

/*
 * Determine the appropriate additive constant for the current iteration
 */
function sha1_kt(t)
{
  return (t < 20) ?  1518500249 : (t < 40) ?  1859775393 :
         (t < 60) ? -1894007588 : -899497514;
}

/*
 * Calculate the HMAC-SHA1 of a key and some data
 */
function core_hmac_sha1(key, data)
{
  var bkey = str2binb(key);
  if(bkey.length > 16) bkey = core_sha1(bkey, key.length * chrsz);

  var ipad = Array(16), opad = Array(16);
  for(var i = 0; i < 16; i++)
  {
    ipad[i] = bkey[i] ^ 0x36363636;
    opad[i] = bkey[i] ^ 0x5C5C5C5C;
  }

  var hash = core_sha1(ipad.concat(str2binb(data)), 512 + data.length * chrsz);
  return core_sha1(opad.concat(hash), 512 + 160);
}

/*
 * Add integers, wrapping at 2^32. This uses 16-bit operations internally
 * to work around bugs in some JS interpreters.
 */
function safe_add(x, y)
{
  var lsw = (x & 0xFFFF) + (y & 0xFFFF);
  var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
  return (msw << 16) | (lsw & 0xFFFF);
}

/*
 * Bitwise rotate a 32-bit number to the left.
 */
function rol(num, cnt)
{
  return (num << cnt) | (num >>> (32 - cnt));
}

/*
 * Convert an 8-bit or 16-bit string to an array of big-endian words
 * In 8-bit function, characters >255 have their hi-byte silently ignored.
 */
function str2binb(str)
{
  var bin = Array();
  var mask = (1 << chrsz) - 1;
  for(var i = 0; i < str.length * chrsz; i += chrsz)
    bin[i>>5] |= (str.charCodeAt(i / chrsz) & mask) << (32 - chrsz - i%32);
  return bin;
}

/*
 * Convert an array of big-endian words to a string
 */
function binb2str(bin)
{
  var str = "";
  var mask = (1 << chrsz) - 1;
  for(var i = 0; i < bin.length * 32; i += chrsz)
    str += String.fromCharCode((bin[i>>5] >>> (32 - chrsz - i%32)) & mask);
  return str;
}

/*
 * Convert an array of big-endian words to a hex string.
 */
function binb2hex(binarray)
{
  var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
  var str = "";
  for(var i = 0; i < binarray.length * 4; i++)
  {
    str += hex_tab.charAt((binarray[i>>2] >> ((3 - i%4)*8+4)) & 0xF) +
           hex_tab.charAt((binarray[i>>2] >> ((3 - i%4)*8  )) & 0xF);
  }
  return str;
}

/*
 * Convert an array of big-endian words to a base-64 string
 */
function binb2b64(binarray)
{
  var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
  var str = "";
  for(var i = 0; i < binarray.length * 4; i += 3)
  {
    var triplet = (((binarray[i   >> 2] >> 8 * (3 -  i   %4)) & 0xFF) << 16)
                | (((binarray[i+1 >> 2] >> 8 * (3 - (i+1)%4)) & 0xFF) << 8 )
                |  ((binarray[i+2 >> 2] >> 8 * (3 - (i+2)%4)) & 0xFF);
    for(var j = 0; j < 4; j++)
    {
      if(i * 8 + j * 6 > binarray.length * 32) str += b64pad;
      else str += tab.charAt((triplet >> 6*(3-j)) & 0x3F);
    }
  }
  return str;
}
var SessionUpdate = Class.create({

    notificationTimerId : null, 
    periodicalExecuter: null,

    /**
     * initialize()
     * Wird beim Erzeugen einer neuen Instanz aufgerufen.
     * Beim Laden der Seite wird eine neue Instanz erstellt
     * @param hash Daten-Hash mit allen Daten, die aktuell in
     * der Session stehen, wenn der User eingeloggt ist
     */
    initialize: function(data) {
        this.periodicalExecuter = new PeriodicalExecuter(this.getSessionData.bind(this), 10);
    },
    
	login: function() {

        // Die periodische Ausfuehrung der Datenaktualisierung stoppen
        //this.periodicalExecuter.stop();
		var self = this;
		
		$('topLoginButton').src = '/resources/images/loader.gif';
		// Login verschicken
		new Ajax.Request('/ajax/SessionUpdater/doLogin', {
			method: 'post',
			parameters: {username: $F('loginUser'), password: hex_sha1($F('loginPasswd'))},
			onSuccess: function(x) {
				aHO.requestSuccess(x, 'loginMessage', function (username, html) {
					self.adaptaPageToLoginStatus.apply(self, new Array(true));
					$('loggedInHeader').update(html);
					$('loggedInHeader').show();
					$('topLoginButton').src = '/resources/images/buttons/go.gif';
				}, function () {
					$('topLoginButton').src = '/resources/images/buttons/go.gif';
				}, { showSuccessMessage : false, hideSuccessMessageBoxAfter: 0});
			},
			onFailure: function(x) {
				aHO.onFailure('successMessageContainer1');
			}
		});

	},
	
    logout: function() {
		
		var self = this;
		
		new Ajax.Request('/ajax/SessionUpdater/doLogout', {
			method: 'post',
			onSuccess: function(x) {
				aHO.requestSuccess(x, 'loginMessage', function() { self.adaptaPageToLoginStatus.apply(self, new Array(false));}, null, { showSuccessMessage : false});
			},
			onFailure: function(x) {
				aHO.onFailure('successMessageContainer1');
			}
		});
    },
	
	adaptaPageToLoginStatus: function(isLoggedIn) {

		if(isLoggedIn == false) {
	        $('ajaxLoginForm').style.display = '';
	        $('loggedInHeader').hide();
	        $('loginLogoutButton').hide();
	        $('loginRegButton').style.display = '';
		} else {
	        $('ajaxLoginForm').hide();
	        $('loggedInHeader').style.display = '';
	        $('loginLogoutButton').style.display = '';
	        $('loginRegButton').hide();		
		}
	
	},
	
	loginThroughRegLogin: function(callAfterLogin, callingArguments) {
		 try {
			 // Alte Fehlermeldung(en) entfernen
			 $$('#regLogin .error').each(Element.remove);

			 var self = this;
			new Ajax.Request('/ajax/SessionUpdater/doLogin', {
				method: 'post',
				parameters: {username: $F('regLoginUser'), password: hex_sha1($F('regLoginPasswd'))},
				onSuccess: function(x) {
					aHO.requestSuccess(x, 'loginFormError', function() {
						currentOverlay.hide();
						self.adaptaPageToLoginStatus.apply(self, new Array(true));					
						callAfterLogin.apply(this, callingArguments);
	
					}, null, { showSuccessMessage : false});
				}.bind(this),
				onFailure: function(x) {
					this.loginThroughRegLoginFailure;
				}
			});
		} catch(e) {
			alert(e);
		}
	},

	/*loginThroughRegLoginSuccess: function(transport) {
		//regLoginSuccessCallback();
		// Ursprünglich beabsichtigten Ajax-Call wiederholen
		new Ajax.Request(aHO.regLoginData.ajaxCallUrl, {
			method: 'post',
			parameters: aHO.regLoginData.ajaxCallParams,
			onSuccess: function(x) {
				this.adaptaPageToLoginStatus(true);
				aHO.requestSuccess(x,
						aHO.regLoginData.messageElem, 
						aHO.regLoginData.successCallback, 
						aHO.regLoginData.errorCallback, 
						aHO.regLoginData.overrideSystemMessageOptions);
				aHO.closeRegLogin();
			}.bind(this),
			onFailure: aHO.regLoginData.errorCallback
		});
	},*/

	/*loginThroughRegLoginFailure: function(transport) {

		 // Fehlermeldung einblenden
		 $('regLoginInfo').insert ({
		
		 'after'  :
		 '<p class="error">' + transport.responseJSON.message + '</p>'
		
		 } );
	},*/
    /**
     * getSessionData()
     * 
     */
	getSessionData: function() {
	
		new Ajax.Request('/ajax/SessionUpdater/getNotificationsLink', {
			method: 'post',
			onSuccess: function(x) {
				aHO.requestSuccess(x, '', function(html) {
					$('notificationsCountContainer').update(html);
				}, null, { showSuccessMessage : false, showErrorMessage : false});
			}.bind(this),
			onFailure: function(x) {
				this.loginThroughRegLoginFailure;
			}
		});
	},
  
    processSessionData: function(ajaxResponse) {    
        
        return;
        
		var localData = (ajaxResponse != undefined) ? ajaxResponse['text'] : this.jsonResponse;

		// Progress-Anzeige ausblenden
		this.adaptProgress(((!localData['userid']) ? 'offlineBar' : 'onlineBar'), false);

		// Anzeige, wie viele Leute gerade online sind aktualisieren
		$('online_user').innerHTML = localData['onlineUserCount'] + ' Leute jetzt online!';
		
		// Wenn im Response keine userID enthalten ist, ist der User nicht
		// eigenloggt, es werden nur die allgemeinen Daten aktualisiert
        if (!localData['userid']) {
            this.adaptBarsToLoginStatus(false);
			if(this.periodicalExecuter) {
			  this.periodicalExecuter.stop();
			}
			return;
		}
		
		// Der User ist eingeloggt, also gesamte Leiste aktualisieren
        this.adaptBarsToLoginStatus(true);

        // Botschafen aus dem Response auslesen
        if (localData['botschaften']) {
        
            // Es gibt neue Botschaften, also also das Bild anpassen
            $('kosmosNavBotschaftenLink').removeClassName('botschaften');
            $('kosmosNavBotschaftenLink').addClassName('botschaften-a');
            
            // Wert fuer neue Botschaften setzen
            $('kosmosNavBotschaftenLink').innerHTML = localData['botschaften'];

        // Es gibt keine neuen Botschaften
        } else {
            $('kosmosNavBotschaftenLink').addClassName('botschaften');
            $('kosmosNavBotschaftenLink').removeClassName('botschaften-a');
        }
      
        // Abos aus dem Response auslesen
        if (localData['aboeintraege']) {
        
            // Es gibt aktuelle Abos, also Bild aktualisieren
            $('kosmosNavAbosLink').removeClassName('abos');
            $('kosmosNavAbosLink').addClassName('abos-a');
            
            // Wert fuer neue Botschaften setzen
            $('kosmosNavAbosLink').innerHTML = localData['aboeintraege'];

		} else {
            $('kosmosNavAbosLink').addClassName('abos');
            $('kosmosNavAbosLink').removeClassName('abos-a');
		}
    
		// Notifications auslesen  
		var notificationcnt = localData['notification'].length;

		// Alle Eintraege aus der Notifications-Liste loeschen
		$('notificationsList').innerHTML = '';

        // Es gibt keine Notifications, also die gesamte Leiste ausblenden
		if(notificationcnt == 0) {   
		   $('notificationContainer').style.display = "none";
		   return;
		}
        
        // Es sind Notifications vorhanden
        // Die Titelleiste anpassen, in der steht, wie viele Notifications vorhanden sind
        $('toggleNotifications').innerHTML = 'Du hast ' + notificationcnt + ' Nachricht' + ((notificationcnt == 1) ? '' : 'en');
        
        // Alle Notifications auslesen und als li in die ul einbauen
        localData['notification'].each(function(e) {
        
            var tmpLink = new Element('a', { href: e.url }).update(((e.message == '' || e.message == undefined) ? e.title : e.message));
            Event.observe(tmpLink, 'click', this.deleteNotificationAndGoto.bind(this, e.id, e.url));

            var avatarImg = new Element('img', {src: 'http://jetztimg.sueddeutsche.de/upl/images/user/' + getUserImagePath(e.sender) + '/thumbs_avatar/' + e.bildid + '.' + e.bildtyp});
        
            var delLink = new Element('a', { href: 'javascript:void(0);' }).update('Löschen');
            delLink.addClassName('deleteNotification');
            Event.observe(delLink, 'click', this.deleteNotification.bind(this, e.id));
        
            liEl = new Element('li', { id: "notification_" + e.id });

            liEl.appendChild(avatarImg);
            liEl.appendChild(tmpLink);
            liEl.appendChild(delLink);
            $('notificationsList').appendChild(liEl);      
        }.bind(this));
        
        $('notificationContainer').style.display = '';
       
        // Wenn es neue Nachrichten gibt, die Anzeige highlighten
        if (this.countNotifications != notificationcnt) {
            new Effect.Highlight('toggleNotifications', { startcolor: '#FFCDC6', endcolor: '#E85541', restorecolor: '#E85541'});
		}
		
		// Neuen Wert fuer den Notifications-Count speichern
		this.countNotifications = notificationcnt;

    },
    
    deleteNotification: function(id) {
        if(!confirm("Willst Du diese Nachricht wirklich löschen?"))
            return;
		
		new Ajax.Request('/ajax/SessionUpdater/deleteNotification', {
			method: 'post',
			parameters: {'id' : id},
			onSuccess: function(x) {
				aHO.requestSuccess(x, 'modal', function(id) {
					
					$('notification_' + id).remove();
					if($('sidebar_mynotificationsList').select('li').length == 0) {
						$('sidebar_mynotifications').remove();
					}
					
				}, null, { showSuccessMessage : false});
			}.bind(this),
			onFailure: function(x) {
				this.loginThroughRegLoginFailure;
			}
		});
    }
    
});
// http://snippets.dzone.com/posts/show/3411

var Dialog = {};

Dialog.Box = Class.create();
Object.extend(Dialog.Box.prototype, {
	initialize: function(id, mode, ajaxURL, ajaxParams, afterLoading, text) {
		
		switch(mode){
			
			case 'ajaxContent':
				var self = this;
				this.dialog_box = $('overlayContainer');
				new Ajax.Request(ajaxURL, {
					method: 'post',
					parameters: ajaxParams,
					onSuccess: function(x) {
						aHO.requestSuccess(x, null,
						function (contentHTML) {
							$('overlayContainerContent').update(contentHTML);
							self.setBoxPosition();
							afterLoading();					
						}, null, {showSuccessMessage: false});
					},
					onFailure: function(x) {
						aHO.onFailure('successMessageContainer1');
					}
				});			
			break;

			case 'text':
				this.dialog_box = $('overlayContainer');
				$('overlayContainerContent').update($('messageOverlay'));
				$('messageOverlay').update(text);
				$('messageOverlay').show();			
			break;
			
			case 'elem':
				this.dialog_box = $('overlayContainer');
				$('overlayContainerContent').update(id);
				id.show();
			break;
				
			default:
				this.dialog_box = $('overlayContainer');
				$('overlayContainerContent').update($(id));
				$(id).show();
			break;
		}
		
		this.createOverlay();
		this.dialog_box.show = this.show.bind(this);
		this.dialog_box.persistent_show = this.persistent_show.bind(this);
		this.dialog_box.hide = this.hide.bind(this);
		this.dialog_box.close = this.hide.bind(this);
		this.dialog_box.exit = this.hide.bind(this);
  
		this.parent_element = this.dialog_box.parentNode;
  
		this.dialog_box.style.position = "absolute";
  
  		this.setBoxPosition();
  		
	},
  
	createOverlay: function() {
	  if($('dialog_overlay')) {
		this.overlay = $('dialog_overlay');
	  } else {
		this.overlay = document.createElement('div');
		this.overlay.id = 'dialog_overlay';
		Object.extend(this.overlay.style, {
			position: 'absolute',
			top: 0,
			left: 0,
			zIndex: 90,
			width: '100%',
			backgroundColor: '#000',
			display: 'none'
		});
		document.body.insertBefore(this.overlay, document.body.childNodes[0]);
	  }
	},
  
	moveDialogBox: function(where) {
	  Element.remove(this.dialog_box);
	  if(where == 'back')
		this.dialog_box = this.parent_element.appendChild(this.dialog_box);
	  else
		this.dialog_box = this.overlay.parentNode.insertBefore(this.dialog_box, this.overlay);
	},
  
	show: function() {
	
		$('bodyElement').style.overflow = 'hidden';
	
	  this.overlay.style.height = this.bodyHeight()+'px';
	  this.moveDialogBox('out');
	  
	  this.overlay.onclick = this.hide.bind(this);
		
	  this.selectBoxes('hide');
	  new Effect.Appear(this.overlay, {duration: 0.1, from: 0.0, to: 0.7});
	  this.dialog_box.style.display = '';
  
	  this.dialog_box.style.left = '0px';
	  this.setBoxPosition();
		
	},
	
	setBoxPosition : function() {
		var e_dims = Element.getDimensions(this.dialog_box);
		var b_dims = Element.getDimensions(this.overlay);
  
		//this.dialog_box.style.left = ((b_dims.width/2) - (e_dims.width/2)) + 'px';
		//this.dialog_box.style.top = this.getScrollTop() + ((this.winHeight() - (e_dims.width/2))/2) + 'px';
		
		var content_dims = Element.getDimensions($('overlayContainerContent'));
		$('overlayContainer').style.width = content_dims.width + 40;

		this.dialog_box.style.left = ((this.winWidth()/2) - (e_dims.width)/2) + 'px';
		this.dialog_box.style.top = this.getScrollTop() + ((this.winHeight() - (e_dims.width/2))/2) + 'px';
		this.dialog_box.style.zIndex = this.overlay.style.zIndex + 1;	
	},
	
	getScrollTop: function() {
		return (window.pageYOffset)?window.pageYOffset:(document.documentElement && document.documentElement.scrollTop)?document.documentElement.scrollTop:document.body.scrollTop;
	},
	
	persistent_show: function() {
	  this.overlay.style.height = this.bodyHeight()+'px';
	  this.moveDialogBox('out');
   
	  this.selectBoxes('hide');
	  new Effect.Appear(this.overlay, {duration: 0.1, from: 0.0, to: 0.3});
	  
	  this.dialog_box.style.display = '';
		this.dialog_box.style.left = '0px';
	  var e_dims = Element.getDimensions(this.dialog_box);
		this.dialog_box.style.left = ((this.winWidth()/2) - (e_dims.width)/2) + 'px';
		
	},
  
	hide: function() {
		$('bodyElement').style.overflow = 'scroll';
	  this.selectBoxes('show');
	  new Effect.Fade(this.overlay, {duration: 0.1});
	  this.dialog_box.style.display = 'none';
	  this.moveDialogBox('back');
	  $A(this.dialog_box.getElementsByTagName('input')).each(function(e){if(e.type!='submit')e.value=''});
	},
  
	selectBoxes: function(what) {
	  $A(document.getElementsByTagName('select')).each(function(select) {
		Element[what](select);
	  });
  
	  if(what == 'hide')
		$A(this.dialog_box.getElementsByTagName('select')).each(function(select){Element.show(select)})
	},
	
	bodyWidth: function() { return document.body.offsetWidth || window.innerWidth || document.documentElement.clientWidth || 0; },
	bodyHeight: function() { return document.body.offsetHeight || window.innerHeight || document.documentElement.clientHeight || 0; },
  
	winWidth: function() {
		 var viewportwidth;
		 
		 // the more standards compliant browsers (mozilla/netscape/opera/IE7) use window.innerWidth and window.innerHeight
		 
		 if (typeof window.innerWidth != 'undefined')
		 {
			  viewportwidth = window.innerWidth;
		 }
		 
		// IE6 in standards compliant mode (i.e. with a valid doctype as the first line in the document)
		
		 else if (typeof document.documentElement != 'undefined' && typeof document.documentElement.clientWidth != 'undefined' && document.documentElement.clientWidth != 0)
		 {
			   viewportwidth = document.documentElement.clientWidth;
		 }
		 
		 // older versions of IE
		 
		 else
		 {
			   viewportwidth = document.getElementsByTagName('body')[0].clientWidth
		 }
		 return viewportwidth;
	
	 },
	winHeight: function() { 
		 var viewportheight;
		 
		 // the more standards compliant browsers (mozilla/netscape/opera/IE7) use window.innerWidth and window.innerHeight
		 
		 if (typeof window.innerHeight != 'undefined')
		 {
			  viewportheight = window.innerHeight
		 }
		 
		// IE6 in standards compliant mode (i.e. with a valid doctype as the first line in the document)
		
		 else if (typeof document.documentElement != 'undefined' && typeof document.documentElement.clientHeight != 'undefined' && document.documentElement.clientHeight != 0)
		 {
			   viewportheight = document.documentElement.clientHeight;
		 }
		 
		 // older versions of IE
		 
		 else
		 {
			   viewportheight = document.getElementsByTagName('body')[0].clientHeight;
		 }
		 return viewportheight;
	
	}
  
  });
var sessionUpdate = null;
var currentOverlay = null;

function showSecurityQuestion(text, okCallback) {
	currentOverlay = new Dialog.Box('securityQuestionOverlay', '');
	currentOverlay.show();
	$('securityQuestionContent').update(text);
	Event.observe('securityQuestionButton', 'click', okCallback);
}

function writeOwnText() {
    
	callingFunction = arguments.callee;
	callingArguments = arguments;
	var self = this;

	new Ajax.Request('/ajax/Texte/eigenenTextSchreiben', {
		method: 'post',
		onSuccess: function(x) {
			aHO.requestSuccess(x, 'texte/textVerfassen',
			function (url) {
				window.location.href = url;
			}, null, {showSuccessMessage: false}, callingFunction.bind(self), callingArguments);
		},
		onFailure: function(x) {
			aHO.onFailure('successMessageContainer1');
		}
	});
}

function createKlasse() {
    
	callingFunction = arguments.callee;
	callingArguments = arguments;
	var self = this;

	new Ajax.Request('/ajax/Klassen/eigeneKlasseAnlegen', {
		method: 'post',
		onSuccess: function(x) {
			aHO.requestSuccess(x, '/klassen/registrierung/',
			function (url) {
				window.location.href = url;
			}, null, {showSuccessMessage: false}, callingFunction.bind(self), callingArguments);
		},
		onFailure: function(x) {
			aHO.onFailure('successMessageContainer1');
		}
	});
}

function writeOwnBoardPost(forumid) {
    
	callingFunction = arguments.callee;
	callingArguments = arguments;
	var self = this;

	new Ajax.Request('/ajax/Foren/eigenenForenbeitragSchreiben', {
		method: 'post',
		parameters : { 'forumid' : forumid },
		onSuccess: function(x) {
			aHO.requestSuccess(x, '',
			function (url) {
				window.location.href = url;
			}, null, {showSuccessMessage: false}, callingFunction.bind(self), callingArguments);
		},
		onFailure: function(x) {
			aHO.onFailure('successMessageContainer1');
		}
	});
}

function createOwnProject() {
    
	callingFunction = arguments.callee;
	callingArguments = arguments;
	var self = this;

	new Ajax.Request('/ajax/Klassen/eigeneKlasseAnlegen', {
		method: 'post',
		onSuccess: function(x) {
			aHO.requestSuccess(x, 'klassen/registrierung',
			function (url) {
				window.location.href = url;
			}, null, {showSuccessMessage: false}, callingFunction.bind(self), callingArguments);
		},
		onFailure: function(x) {
			aHO.onFailure('successMessageContainer1');
		}
	});
}

function loadSchoolsMap(schools) {
	
	/*var map = new GMap2(document.getElementById("map_canvas"), { mapTypes: new Array(G_PHYSICAL_MAP) });
	map.addControl(new GSmallMapControl());
	map.setCenter(new GLatLng(9.1450000, 40.4896730), 5);
       				
    mgr = new GMarkerManager(map);
       				
   	var icon = new GIcon();
   	icon.image = "resources/images/mapmarker.png";
    icon.iconAnchor = new GPoint(10, 21);
    icon.iconSize = new GSize(17, 21);*/
    
/*{foreach from=$SCHULENFUERMAP item=SCHULE}
					 marker = new GMarker(new GLatLng({$SCHULE.lat}, {$SCHULE.lon}), {literal}{ icon: icon }{/literal});
					 mgr.addMarker(marker, 1);
					// map.addOverlay(marker);
					 {/foreach}
					 {literal}
					 
					 mgr.refresh();*/
    
}

function randomString(string_length) {
	
	var chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz";
	var randomstring = '';
	
	for (var i=0; i<string_length; i++) {
		var rnum = Math.floor(Math.random() * chars.length);
		randomstring += chars.substring(rnum,rnum+1);
	}
	
	return randomstring;
}


document.observe('dom:loaded', function() {

	sessionUpdate = new SessionUpdate();

	if (!window.dialogManager) {
		window.dialogManager = new DialogManager('dialog_overlay', 'overlayDialogBox', 100);
	}
	
	/*Event.observe($('bodyElement'), 'keypress', function(event) {
		if(event.keyCode == Event.KEY_ESC)
			currentOverlay.hide();
	});*/
	/*if (GBrowserIsCompatible()) {

		new Ajax.Request('/ajax/Misc/schulenFuerGoogleMaps', {
			method: 'post',
			parameters: {},
			onSuccess: function(x) {
				aHO.requestSuccess(x, '', loadSchoolsMap);
			},
			onFailure: function(x) {
				aHO.onFailure('');
			}
		});
					 
	}*/
	
});


function caseInsensitiveCharOrdAsc(a, b){
	a = a.toLowerCase(); b = b.toLowerCase();
	if (a>b) return 1;
	if (a <b) return -1;
	return 0;
}

var Umfrage = Class.create({
    
    abstimmen : function() {
		
		callingFunction = arguments.callee;
		var self = this;
		
		var isChecked = ''; 
		var rObj = document.umfrageform.antwortid;
		for (var i=0; i<rObj.length; i++) if (rObj[i].checked) isChecked = rObj[i].value; 
		
		//$('umfrage').getInputs('radio', 'antwortid').find(function(r){return r.checked}).value
		
		new Ajax.Request('/ajax/Umfrage/abstimmen', {
			method: 'post',
			parameters: { umfrageid: $('umfrageid').value, antwortid: isChecked },
			onSuccess: function(x) {
				aHO.requestSuccess(x, 'successUmfrageContainer',
				function(ergebnisHtml) {
					$('showUmfrageResult').update(ergebnisHtml);
				}
				, null, {showSuccessMessage: false}, callingFunction.bind(self));
			},
			onFailure: function(x) {
				aHO.onFailure('successUmfrageContainer');
			}
		});
    },
    
    speichern : function() {
        
		new Ajax.Request('/ajax/Umfrage/speichern', {
			method: 'post',
			parameters: { query: $('umfrage-erstellen').serialize() },
			onSuccess: function(x) {
				aHO.requestSuccess(x, 'successErstellenContainer');
			},
			onFailure: function(x) {
				aHO.onFailure('failureUmfrageContainer');
			}
		});
    },
    
    aktivieren : function() {
        
		new Ajax.Request('/ajax/Umfrage/aktivieren', {
			method: 'post',
			parameters: { umfrageid: $('fumfrageid').value },
			onSuccess: function(x) {
				aHO.requestSuccess(x, 'successAktivierenContainer', '', '', { hideSuccessMessageBoxAfter:0 });
			},
			onFailure: function(x) {
				aHO.onFailure('failureUmfrageContainer');
			}
		});
    },
    
    bearbeiten : function() {
        
		new Ajax.Request('/ajax/Umfrage/bearbeiten', {
			method: 'post',
			parameters: { query: $('umfrage-erstellen').serialize() },
			onSuccess: function(x) {
				aHO.requestSuccess(x, 'successBearbeitenContainer', '', '', { hideSuccessMessageBoxAfter:0 });
			},
			onFailure: function(x) {
				aHO.onFailure('failureUmfrageContainer');
			}
		});
    },
    
    loeschen : function() {
        
		new Ajax.Request('/ajax/Umfrage/loeschen', {
			method: 'post',
			parameters: { umfrageid: $('fumfrageid').value },
			onSuccess: function(x) {
				aHO.requestSuccess(x, 'successBearbeitenContainer', '', '', { hideSuccessMessageBoxAfter:0 });
			},
			onFailure: function(x) {
				aHO.onFailure('failureUmfrageContainer');
			}
		});
    }
 
});