/* Merged Plone Javascript file
 * This file is dynamically assembled from separate parts.
 * Some of these parts have 3rd party licenses or copyright information attached
 * Such information is valid for that section,
 * not for the entire composite file
 * originating files are separated by - filename.js -
 */

/* - ++resource++prototype.js - */
/*  Prototype JavaScript framework, version 1.5.0_rc1
 *  (c) 2005 Sam Stephenson <sam@conio.net>
 *
 *  Prototype is freely distributable under the terms of an MIT-style license.
 *  For details, see the Prototype web site: http://prototype.conio.net/
 *
/*--------------------------------------------------------------------------*/

var Prototype = {
  Version: '1.5.0_rc1',
  BrowserFeatures: {
    XPath: !!document.evaluate
  },

  ScriptFragment: '(?:<script.*?>)((\n|\r|.)*?)(?:<\/script>)',
  emptyFunction: function() {},
  K: function(x) { return x }
}

var Class = {
  create: function() {
    return function() {
      this.initialize.apply(this, arguments);
    }
  }
}

var Abstract = new Object();

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 === undefined) return 'undefined';
      if (object === null) return 'null';
      return object.inspect ? object.inspect() : object.toString();
    } catch (e) {
      if (e instanceof RangeError) return '...';
      throw e;
    }
  },

  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);
  }
});

Function.prototype.bind = function() {
  var __method = this, args = $A(arguments), object = args.shift();
  return function() {
    return __method.apply(object, args.concat($A(arguments)));
  }
}

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

Object.extend(Number.prototype, {
  toColorPart: function() {
    var digits = this.toString(16);
    if (this < 16) return '0' + digits;
    return digits;
  },

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

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

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

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

    return returnValue;
  }
}

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

var PeriodicalExecuter = Class.create();
PeriodicalExecuter.prototype = {
  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);
  },

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

  onTimerEvent: function() {
    if (!this.currentlyExecuting) {
      try {
        this.currentlyExecuting = true;
        this.callback(this);
      } finally {
        this.currentlyExecuting = false;
      }
    }
  }
}
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 += (replacement(match) || '').toString();
        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 = count === undefined ? 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 this;
  },

  truncate: function(length, truncation) {
    length = length || 30;
    truncation = truncation === undefined ? '...' : truncation;
    return this.length > length ?
      this.slice(0, length - truncation.length) + truncation : 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 div = document.createElement('div');
    var text = document.createTextNode(this);
    div.appendChild(text);
    return div.innerHTML;
  },

  unescapeHTML: function() {
    var div = document.createElement('div');
    div.innerHTML = this.stripTags();
    return div.childNodes[0] ? div.childNodes[0].nodeValue : '';
  },

  toQueryParams: function() {
    var match = this.strip().match(/[^?]*$/)[0];
    if (!match) return {};
    var pairs = match.split('&');
    return pairs.inject({}, function(params, pairString) {
      var pair  = pairString.split('=');
      var value = pair[1] ? decodeURIComponent(pair[1]) : undefined;
      params[decodeURIComponent(pair[0])] = value;
      return params;
    });
  },

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

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

    var camelizedString = this.indexOf('-') == 0
      ? oStringList[0].charAt(0).toUpperCase() + oStringList[0].substring(1)
      : oStringList[0];

    for (var i = 1, length = oStringList.length; i < length; i++) {
      var s = oStringList[i];
      camelizedString += s.charAt(0).toUpperCase() + s.substring(1);
    }

    return camelizedString;
  },

  inspect: function(useDoubleQuotes) {
    var escapedString = this.replace(/\\/g, '\\\\');
    if (useDoubleQuotes)
      return '"' + escapedString.replace(/"/g, '\\"') + '"';
    else
      return "'" + escapedString.replace(/'/g, '\\\'') + "'";
  }
});

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

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

var Template = Class.create();
Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;
Template.prototype = {
  initialize: function(template, pattern) {
    this.template = template.toString();
    this.pattern  = pattern || Template.Pattern;
  },

  evaluate: function(object) {
    return this.template.gsub(this.pattern, function(match) {
      var before = match[1];
      if (before == '\\') return match[2];
      return before + (object[match[3]] || '').toString();
    });
  }
}

var $break    = new Object();
var $continue = new Object();

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

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

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

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

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

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

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

  grep: function(pattern, iterator) {
    var results = [];
    this.each(function(value, index) {
      var stringValue = value.toString();
      if (stringValue.match(pattern))
        results.push((iterator || Prototype.K)(value, index));
    })
    return results;
  },

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

  inGroupsOf: function(number, fillWith) {
    fillWith = fillWith || null;
    var results = this.eachSlice(number);
    if (results.length > 0) (number - results.last().length).times(function() {
      results.last().push(fillWith)
    });
    return results;
  },

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

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

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

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

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

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

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

  sortBy: function(iterator) {
    return this.collect(function(value, index) {
      return {value: value, criteria: iterator(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.collect(Prototype.K);
  },

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

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

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

Object.extend(Enumerable, {
  map:     Enumerable.collect,
  find:    Enumerable.detect,
  select:  Enumerable.findAll,
  member:  Enumerable.include,
  entries: Enumerable.toArray
});
var $A = Array.from = function(iterable) {
  if (!iterable) return [];
  if (iterable.toArray) {
    return iterable.toArray();
  } else {
    var results = [];
    for (var i = 0, length = iterable.length; i < length; i++)
      results.push(iterable[i]);
    return results;
  }
}

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 != undefined || value != null;
    });
  },

  flatten: function() {
    return this.inject([], function(array, value) {
      return array.concat(value && value.constructor == Array ?
        value.flatten() : [value]);
    });
  },

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

  indexOf: function(object) {
    for (var i = 0, length = this.length; i < length; i++)
      if (this[i] == object) return i;
    return -1;
  },

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

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

  uniq: function() {
    return this.inject([], function(array, value) {
      return array.include(value) ? array : array.concat([value]);
    });
  },

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

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

Array.prototype.toArray = Array.prototype.clone;
var Hash = {
  _each: function(iterator) {
    for (var key in this) {
      var value = this[key];
      if (typeof value == 'function') continue;

      var pair = [key, value];
      pair.key = key;
      pair.value = value;
      iterator(pair);
    }
  },

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

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

  merge: function(hash) {
    return $H(hash).inject(this, function(mergedHash, pair) {
      mergedHash[pair.key] = pair.value;
      return mergedHash;
    });
  },

  toQueryString: function() {
    return this.map(function(pair) {
      if (!pair.value && pair.value !== 0) pair[1] = '';
      if (!pair.key) return;
      return pair.map(encodeURIComponent).join('=');
    }).join('&');
  },

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

function $H(object) {
  var hash = Object.extend({}, object || {});
  Object.extend(hash, Enumerable);
  Object.extend(hash, Hash);
  return hash;
}
ObjectRange = Class.create();
Object.extend(ObjectRange.prototype, Enumerable);
Object.extend(ObjectRange.prototype, {
  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 (typeof responder[callback] == 'function') {
        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 = function() {};
Ajax.Base.prototype = {
  setOptions: function(options) {
    this.options = {
      method:       'post',
      asynchronous: true,
      contentType:  'application/x-www-form-urlencoded',
      encoding:     'UTF-8',
      parameters:   ''
    }
    Object.extend(this.options, options || {});

    this.options.method = this.options.method.toLowerCase();
    this.options.parameters = $H(typeof this.options.parameters == 'string' ?
      this.options.parameters.toQueryParams() : this.options.parameters);
  }
}

Ajax.Request = Class.create();
Ajax.Request.Events =
  ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];

Ajax.Request.prototype = Object.extend(new Ajax.Base(), {
  initialize: function(url, options) {
    this.transport = Ajax.getTransport();
    this.setOptions(options);
    this.request(url);
  },

  request: function(url) {
    var params = this.options.parameters;
    if (params.any()) params['_'] = '';

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

    this.url = url;

    // when GET, append parameters to URL
    if (this.options.method == 'get' && params.any())
      this.url += (this.url.indexOf('?') >= 0 ? '&' : '?') +
        params.toQueryString();

    try {
      Ajax.Responders.dispatch('onCreate', this, this.transport);

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

      if (this.options.asynchronous)
        setTimeout(function() { this.respondToReadyState(1) }.bind(this), 10);

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

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

      this.transport.send(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)
      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.options.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 (typeof extras.push == 'function')
        for (var i = 0; i < extras.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() {
    return !this.transport.status
        || (this.transport.status >= 200 && this.transport.status < 300);
  },

  respondToReadyState: function(readyState) {
    var state = Ajax.Request.Events[readyState];
    var transport = this.transport, json = this.evalJSON();

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

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

    if (state == 'Complete') {
      if ((this.getHeader('Content-type') || '').strip().
        match(/^(text|application)\/(x-)?(java|ecma)script(;.*)?$/i))
          this.evalResponse();

      // avoid memory leak in MSIE: clean up
      this.transport.onreadystatechange = Prototype.emptyFunction;
    }
  },

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

  evalJSON: function() {
    try {
      var json = this.getHeader('X-JSON');
      return json ? eval('(' + json + ')') : null;
    } catch (e) { return null }
  },

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

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

Ajax.Updater = Class.create();

Object.extend(Object.extend(Ajax.Updater.prototype, Ajax.Request.prototype), {
  initialize: function(container, url, options) {
    this.container = {
      success: (container.success || container),
      failure: (container.failure || (container.success ? null : container))
    }

    this.transport = Ajax.getTransport();
    this.setOptions(options);

    var onComplete = this.options.onComplete || Prototype.emptyFunction;
    this.options.onComplete = (function(transport, param) {
      this.updateContent();
      onComplete(transport, param);
    }).bind(this);

    this.request(url);
  },

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

    if (!this.options.evalScripts) response = response.stripScripts();

    if (receiver = $(receiver)) {
      if (this.options.insertion)
        new this.options.insertion(receiver, response);
      else
        receiver.update(response);
    }

    if (this.success()) {
      if (this.onComplete)
        setTimeout(this.onComplete.bind(this), 10);
    }
  }
});

Ajax.PeriodicalUpdater = Class.create();
Ajax.PeriodicalUpdater.prototype = Object.extend(new Ajax.Base(), {
  initialize: function(container, url, options) {
    this.setOptions(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(request) {
    if (this.options.decay) {
      this.decay = (request.responseText == this.lastText ?
        this.decay * this.options.decay : 1);

      this.lastText = request.responseText;
    }
    this.timer = setTimeout(this.onTimerEvent.bind(this),
      this.decay * this.frequency * 1000);
  },

  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 (typeof element == 'string')
    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, len = query.snapshotLength; i < len; i++)
      results.push(query.snapshotItem(i));
    return results;
  }
}

document.getElementsByClassName = function(className, parentElement) {
  if (Prototype.BrowserFeatures.XPath) {
    var q = ".//*[contains(concat(' ', @class, ' '), ' " + className + " ')]";
    return document._getElementsByXPath(q, parentElement);
  } else {
    var children = ($(parentElement) || document.body).getElementsByTagName('*');
    var elements = [], child;
    for (var i = 0, length = children.length; i < length; i++) {
      child = children[i];
      if (Element.hasClassName(child, className))
        elements.push(Element.extend(child));
    }
    return elements;
  }
}

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

if (!window.Element)
  var Element = new Object();

Element.extend = function(element) {
  if (!element) return;
  if (_nativeExtensions || element.nodeType == 3) return element;

  if (!element._extended && element.tagName && element != window) {
    var methods = Object.clone(Element.Methods), cache = Element.extend.cache;

    if (element.tagName == 'FORM')
      Object.extend(methods, Form.Methods);
    if (['INPUT', 'TEXTAREA', 'SELECT'].include(element.tagName))
      Object.extend(methods, Form.Element.Methods);

    for (var property in methods) {
      var value = methods[property];
      if (typeof value == 'function')
        element[property] = cache.findOrStore(value);
    }

    var methods = Object.clone(Element.Methods.Simulated), cache = Element.extend.cache;
    for (var property in methods) {
      var value = methods[property];
      if ('function' == typeof value && !(property in element))
        element[property] = cache.findOrStore(value);
    }
  }

  element._extended = true;
  return element;
}

Element.extend.cache = {
  findOrStore: function(value) {
    return this[value] = this[value] || function() {
      return value.apply(null, [this].concat($A(arguments)));
    }
  }
}

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).style.display = 'none';
    return element;
  },

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

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

  update: function(element, html) {
    html = typeof html == 'undefined' ? '' : html.toString();
    $(element).innerHTML = html.stripScripts();
    setTimeout(function() {html.evalScripts()}, 10);
    return element;
  },

  replace: function(element, html) {
    element = $(element);
    if (element.outerHTML) {
      element.outerHTML = html.stripScripts();
    } else {
      var range = element.ownerDocument.createRange();
      range.selectNodeContents(element);
      element.parentNode.replaceChild(
        range.createContextualFragment(html.stripScripts()), element);
    }
    setTimeout(function() {html.evalScripts()}, 10);
    return element;
  },

  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) {
    element = $(element);
    return $A(element.getElementsByTagName('*'));
  },

  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) {
    element = $(element);
    if (typeof selector == 'string')
      selector = new Selector(selector);
    return selector.match(element);
  },

  up: function(element, expression, index) {
    return Selector.findElement($(element).ancestors(), expression, index);
  },

  down: function(element, expression, index) {
    return Selector.findElement($(element).descendants(), expression, index);
  },

  previous: function(element, expression, index) {
    return Selector.findElement($(element).previousSiblings(), expression, index);
  },

  next: function(element, expression, index) {
    return Selector.findElement($(element).nextSiblings(), expression, index);
  },

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

  getElementsByClassName: function(element, className) {
    element = $(element);
    return document.getElementsByClassName(className, element);
  },

  getHeight: function(element) {
    element = $(element);
    return element.offsetHeight;
  },

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

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

  addClassName: function(element, className) {
    if (!(element = $(element))) return;
    Element.classNames(element).add(className);
    return element;
  },

  removeClassName: function(element, className) {
    if (!(element = $(element))) return;
    Element.classNames(element).remove(className);
    return element;
  },

  observe: function() {
    Event.observe.apply(Event, arguments);
    return $A(arguments).first();
  },

  stopObserving: function() {
    Event.stopObserving.apply(Event, arguments);
    return $A(arguments).first();
  },

  // 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 $(element).innerHTML.match(/^\s*$/);
  },

  childOf: function(element, ancestor) {
    element = $(element), ancestor = $(ancestor);
    while (element = element.parentNode)
      if (element == ancestor) return true;
    return false;
  },

  scrollTo: function(element) {
    element = $(element);
    var x = element.x ? element.x : element.offsetLeft,
        y = element.y ? element.y : element.offsetTop;
    window.scrollTo(x, y);
    return element;
  },

  getStyle: function(element, style) {
    element = $(element);
    var value = element.style[style.camelize()];
    if (!value) {
      if (document.defaultView && document.defaultView.getComputedStyle) {
        var css = document.defaultView.getComputedStyle(element, null);
        value = css ? css.getPropertyValue(style) : null;
      } else if (element.currentStyle) {
        value = element.currentStyle[style.camelize()];
      }
    }

    if (window.opera && ['left', 'top', 'right', 'bottom'].include(style))
      if (Element.getStyle(element, 'position') == 'static') value = 'auto';

    return value == 'auto' ? null : value;
  },

  setStyle: function(element, style) {
    element = $(element);
    for (var name in style)
      element.style[name.camelize()] = style[name];
    return element;
  },

  getDimensions: function(element) {
    element = $(element);
    if (Element.getStyle(element, 'display') != 'none')
      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;
    els.visibility = 'hidden';
    els.position = 'absolute';
    els.display = '';
    var originalWidth = element.clientWidth;
    var originalHeight = element.clientHeight;
    els.display = 'none';
    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 (window.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.style.overflow || 'auto';
    if ((Element.getStyle(element, 'overflow') || 'visible') != '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;
  }
}

Element.Methods.Simulated = {
  hasAttribute: function(element, attribute) {
    return $(element).getAttributeNode(attribute).specified;
  }
}

// IE is missing .innerHTML support for TABLE-related elements
if(document.all){
  Element.Methods.update = function(element, html) {
    element = $(element);
    html = typeof html == 'undefined' ? '' : html.toString();
    var tagName = element.tagName.toUpperCase();
    if (['THEAD','TBODY','TR','TD'].indexOf(tagName) > -1) {
      var div = document.createElement('div');
      switch (tagName) {
        case 'THEAD':
        case 'TBODY':
          div.innerHTML = '<table><tbody>' +  html.stripScripts() + '</tbody></table>';
          depth = 2;
          break;
        case 'TR':
          div.innerHTML = '<table><tbody><tr>' +  html.stripScripts() + '</tr></tbody></table>';
          depth = 3;
          break;
        case 'TD':
          div.innerHTML = '<table><tbody><tr><td>' +  html.stripScripts() + '</td></tr></tbody></table>';
          depth = 4;
      }
      $A(element.childNodes).each(function(node){
        element.removeChild(node)
      });
      depth.times(function(){ div = div.firstChild });

      $A(div.childNodes).each(
        function(node){ element.appendChild(node) });
    } else {
      element.innerHTML = html.stripScripts();
    }
    setTimeout(function() {html.evalScripts()}, 10);
    return element;
  }
}

Object.extend(Element, Element.Methods);

var _nativeExtensions = false;

if(/Konqueror|Safari|KHTML/.test(navigator.userAgent))
  ['', 'Form', 'Input', 'TextArea', 'Select'].each(function(tag) {
    var className = 'HTML' + tag + 'Element';
    if(window[className]) return;
    var klass = window[className] = {};
    klass.prototype = document.createElement(tag ? tag.toLowerCase() : 'div').__proto__;
  });

Element.addMethods = function(methods) {
  Object.extend(Element.Methods, methods || {});

  function copy(methods, destination, onlyIfAbsent) {
    onlyIfAbsent = onlyIfAbsent || false;
    var cache = Element.extend.cache;
    for (var property in methods) {
      var value = methods[property];
      if (!onlyIfAbsent || !(property in destination))
        destination[property] = cache.findOrStore(value);
    }
  }

  if (typeof HTMLElement != 'undefined') {
    copy(Element.Methods, HTMLElement.prototype);
    copy(Element.Methods.Simulated, HTMLElement.prototype, true);
    copy(Form.Methods, HTMLFormElement.prototype);
    [HTMLInputElement, HTMLTextAreaElement, HTMLSelectElement].each(function(klass) {
      copy(Form.Element.Methods, klass.prototype);
    });
    _nativeExtensions = true;
  }
}

var Toggle = new Object();
Toggle.display = Element.toggle;

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

Abstract.Insertion = function(adjacency) {
  this.adjacency = adjacency;
}

Abstract.Insertion.prototype = {
  initialize: function(element, content) {
    this.element = $(element);
    this.content = content.stripScripts();

    if (this.adjacency && this.element.insertAdjacentHTML) {
      try {
        this.element.insertAdjacentHTML(this.adjacency, this.content);
      } catch (e) {
        var tagName = this.element.tagName.toLowerCase();
        if (tagName == 'tbody' || tagName == 'tr') {
          this.insertContent(this.contentFromAnonymousTable());
        } else {
          throw e;
        }
      }
    } else {
      this.range = this.element.ownerDocument.createRange();
      if (this.initializeRange) this.initializeRange();
      this.insertContent([this.range.createContextualFragment(this.content)]);
    }

    setTimeout(function() {content.evalScripts()}, 10);
  },

  contentFromAnonymousTable: function() {
    var div = document.createElement('div');
    div.innerHTML = '<table><tbody>' + this.content + '</tbody></table>';
    return $A(div.childNodes[0].childNodes[0].childNodes);
  }
}

var Insertion = new Object();

Insertion.Before = Class.create();
Insertion.Before.prototype = Object.extend(new Abstract.Insertion('beforeBegin'), {
  initializeRange: function() {
    this.range.setStartBefore(this.element);
  },

  insertContent: function(fragments) {
    fragments.each((function(fragment) {
      this.element.parentNode.insertBefore(fragment, this.element);
    }).bind(this));
  }
});

Insertion.Top = Class.create();
Insertion.Top.prototype = Object.extend(new Abstract.Insertion('afterBegin'), {
  initializeRange: function() {
    this.range.selectNodeContents(this.element);
    this.range.collapse(true);
  },

  insertContent: function(fragments) {
    fragments.reverse(false).each((function(fragment) {
      this.element.insertBefore(fragment, this.element.firstChild);
    }).bind(this));
  }
});

Insertion.Bottom = Class.create();
Insertion.Bottom.prototype = Object.extend(new Abstract.Insertion('beforeEnd'), {
  initializeRange: function() {
    this.range.selectNodeContents(this.element);
    this.range.collapse(this.element);
  },

  insertContent: function(fragments) {
    fragments.each((function(fragment) {
      this.element.appendChild(fragment);
    }).bind(this));
  }
});

Insertion.After = Class.create();
Insertion.After.prototype = Object.extend(new Abstract.Insertion('afterEnd'), {
  initializeRange: function() {
    this.range.setStartAfter(this.element);
  },

  insertContent: function(fragments) {
    fragments.each((function(fragment) {
      this.element.parentNode.insertBefore(fragment,
        this.element.nextSibling);
    }).bind(this));
  }
});

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

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);
var Selector = Class.create();
Selector.prototype = {
  initialize: function(expression) {
    this.params = {classNames: []};
    this.expression = expression.toString().strip();
    this.parseExpression();
    this.compileMatcher();
  },

  parseExpression: function() {
    function abort(message) { throw 'Parse error in selector: ' + message; }

    if (this.expression == '')  abort('empty expression');

    var params = this.params, expr = this.expression, match, modifier, clause, rest;
    while (match = expr.match(/^(.*)\[([a-z0-9_:-]+?)(?:([~\|!]?=)(?:"([^"]*)"|([^\]\s]*)))?\]$/i)) {
      params.attributes = params.attributes || [];
      params.attributes.push({name: match[2], operator: match[3], value: match[4] || match[5] || ''});
      expr = match[1];
    }

    if (expr == '*') return this.params.wildcard = true;

    while (match = expr.match(/^([^a-z0-9_-])?([a-z0-9_-]+)(.*)/i)) {
      modifier = match[1], clause = match[2], rest = match[3];
      switch (modifier) {
        case '#':       params.id = clause; break;
        case '.':       params.classNames.push(clause); break;
        case '':
        case undefined: params.tagName = clause.toUpperCase(); break;
        default:        abort(expr.inspect());
      }
      expr = rest;
    }

    if (expr.length > 0) abort(expr.inspect());
  },

  buildMatchExpression: function() {
    var params = this.params, conditions = [], clause;

    if (params.wildcard)
      conditions.push('true');
    if (clause = params.id)
      conditions.push('element.id == ' + clause.inspect());
    if (clause = params.tagName)
      conditions.push('element.tagName.toUpperCase() == ' + clause.inspect());
    if ((clause = params.classNames).length > 0)
      for (var i = 0; i < clause.length; i++)
        conditions.push('Element.hasClassName(element, ' + clause[i].inspect() + ')');
    if (clause = params.attributes) {
      clause.each(function(attribute) {
        var value = 'element.getAttribute(' + attribute.name.inspect() + ')';
        var splitValueBy = function(delimiter) {
          return value + ' && ' + value + '.split(' + delimiter.inspect() + ')';
        }

        switch (attribute.operator) {
          case '=':       conditions.push(value + ' == ' + attribute.value.inspect()); break;
          case '~=':      conditions.push(splitValueBy(' ') + '.include(' + attribute.value.inspect() + ')'); break;
          case '|=':      conditions.push(
                            splitValueBy('-') + '.first().toUpperCase() == ' + attribute.value.toUpperCase().inspect()
                          ); break;
          case '!=':      conditions.push(value + ' != ' + attribute.value.inspect()); break;
          case '':
          case undefined: conditions.push(value + ' != null'); break;
          default:        throw 'Unknown operator ' + attribute.operator + ' in selector';
        }
      });
    }

    return conditions.join(' && ');
  },

  compileMatcher: function() {
    this.match = new Function('element', 'if (!element.tagName) return false; \
      return ' + this.buildMatchExpression());
  },

  findElements: function(scope) {
    var element;

    if (element = $(this.params.id))
      if (this.match(element))
        if (!scope || Element.childOf(element, scope))
          return [element];

    scope = (scope || document).getElementsByTagName(this.params.tagName || '*');

    var results = [];
    for (var i = 0, length = scope.length; i < length; i++)
      if (this.match(element = scope[i]))
        results.push(Element.extend(element));

    return results;
  },

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

Object.extend(Selector, {
  matchElements: function(elements, expression) {
    var selector = new Selector(expression);
    return elements.select(selector.match.bind(selector)).collect(Element.extend);
  },

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

  findChildElements: function(element, expressions) {
    return expressions.map(function(expression) {
      return expression.strip().split(/\s+/).inject([null], function(results, expr) {
        var selector = new Selector(expr);
        return results.inject([], function(elements, result) {
          return elements.concat(selector.findElements(result || element));
        });
      });
    }).flatten();
  }
});

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

  serializeElements: function(elements) {
    return elements.inject([], function(queryComponents, element) {
      var queryComponent = Form.Element.serialize(element);
      if (queryComponent) queryComponents.push(queryComponent);
      return queryComponents;
    }).join('&');
  }
};

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

  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 inputs;

    var matchingInputs = new Array();
    for (var i = 0, 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().each(function(element) {
      element.blur();
      element.disabled = 'true';
    });
    return form;
  },

  enable: function(form) {
    form = $(form);
    form.getElements().each(function(element) {
      element.disabled = '';
    });
    return form;
  },

  findFirstElement: function(form) {
    return $(form).getElements().find(function(element) {
      return element.type != 'hidden' && !element.disabled &&
        ['input', 'select', 'textarea'].include(element.tagName.toLowerCase());
    });
  },

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

Object.extend(Form, Form.Methods);

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

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) return '';
    var method = element.tagName.toLowerCase();
    var parameter = Form.Element.Serializers[method](element);

    if (parameter) {
      var key = encodeURIComponent(parameter[0]);
      if (key.length == 0) return;

      if (parameter[1].constructor != Array)
        parameter[1] = [parameter[1]];

      return parameter[1].map(function(value) {
        return key + '=' + encodeURIComponent(value);
      }).join('&');
    }
  },

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

    if (parameter)
      return parameter[1];
  },

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

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

  activate: function(element) {
    element = $(element);
    element.focus();
    if (element.select)
      element.select();
    return element;
  },

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

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

Object.extend(Form.Element, Form.Element.Methods);
var Field = Form.Element;

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

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

  inputSelector: function(element) {
    if (element.checked)
      return [element.name, element.value];
  },

  textarea: function(element) {
    return [element.name, element.value];
  },

  select: function(element) {
    return Form.Element.Serializers[element.type == 'select-one' ?
      'selectOne' : 'selectMany'](element);
  },

  selectOne: function(element) {
    var value = '', opt, index = element.selectedIndex;
    if (index >= 0) {
      opt = Element.extend(element.options[index]);
      // Uses the new potential extension if hasAttribute isn't native.
      value = opt.hasAttribute('value') ? opt.value : opt.text;
    }
    return [element.name, value];
  },

  selectMany: function(element) {
    var value = [];
    for (var i = 0; i < element.length; i++) {
      var opt = Element.extend(element.options[i]);
      if (opt.selected)
        // Uses the new potential extension if hasAttribute isn't native.
        value.push(opt.hasAttribute('value') ? opt.value : opt.text);
    }
    return [element.name, value];
  }
}

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

var $F = Form.Element.getValue;

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

Abstract.TimedObserver = function() {}
Abstract.TimedObserver.prototype = {
  initialize: function(element, frequency, callback) {
    this.frequency = frequency;
    this.element   = $(element);
    this.callback  = callback;

    this.lastValue = this.getValue();
    this.registerCallback();
  },

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

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

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

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

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

Abstract.EventObserver = function() {}
Abstract.EventObserver.prototype = {
  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.bind(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();
Form.Element.EventObserver.prototype = Object.extend(new Abstract.EventObserver(), {
  getValue: function() {
    return Form.Element.getValue(this.element);
  }
});

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

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,

  element: function(event) {
    return event.target || event.srcElement;
  },

  isLeftClick: function(event) {
    return (((event.which) && (event.which == 1)) ||
            ((event.button) && (event.button == 1)));
  },

  pointerX: function(event) {
    return event.pageX || (event.clientX +
      (document.documentElement.scrollLeft || document.body.scrollLeft));
  },

  pointerY: function(event) {
    return event.pageY || (event.clientY +
      (document.documentElement.scrollTop || document.body.scrollTop));
  },

  stop: function(event) {
    if (event.preventDefault) {
      event.preventDefault();
      event.stopPropagation();
    } else {
      event.returnValue = false;
      event.cancelBubble = true;
    }
  },

  // find the first node with the given tagName, starting from the
  // node the event was triggered on; traverses the DOM upwards
  findElement: function(event, tagName) {
    var element = Event.element(event);
    while (element.parentNode && (!element.tagName ||
        (element.tagName.toUpperCase() != tagName.toUpperCase())))
      element = element.parentNode;
    return element;
  },

  observers: false,

  _observeAndCache: function(element, name, observer, useCapture) {
    if (!this.observers) this.observers = [];
    if (element.addEventListener) {
      this.observers.push([element, name, observer, useCapture]);
      element.addEventListener(name, observer, useCapture);
    } else if (element.attachEvent) {
      this.observers.push([element, name, observer, useCapture]);
      element.attachEvent('on' + name, observer);
    }
  },

  unloadCache: function() {
    if (!Event.observers) return;
    for (var i = 0, length = Event.observers.length; i < length; i++) {
      Event.stopObserving.apply(this, Event.observers[i]);
      Event.observers[i][0] = null;
    }
    Event.observers = false;
  },

  observe: function(element, name, observer, useCapture) {
    element = $(element);
    useCapture = useCapture || false;

    if (name == 'keypress' &&
        (navigator.appVersion.match(/Konqueror|Safari|KHTML/)
        || element.attachEvent))
      name = 'keydown';

    Event._observeAndCache(element, name, observer, useCapture);
  },

  stopObserving: function(element, name, observer, useCapture) {
    element = $(element);
    useCapture = useCapture || false;

    if (name == 'keypress' &&
        (navigator.appVersion.match(/Konqueror|Safari|KHTML/)
        || element.detachEvent))
      name = 'keydown';

    if (element.removeEventListener) {
      element.removeEventListener(name, observer, useCapture);
    } else if (element.detachEvent) {
      try {
        element.detachEvent('on' + name, observer);
      } catch (e) {}
    }
  }
});

/* prevent memory leaks in IE */
if (navigator.appVersion.match(/\bMSIE\b/))
  Event.observe(window, 'unload', Event.unloadCache, false);
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;
  },

  realOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.scrollTop  || 0;
      valueL += element.scrollLeft || 0;
      element = element.parentNode;
    } while (element);
    return [valueL, valueT];
  },

  cumulativeOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      element = element.offsetParent;
    } while (element);
    return [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=='BODY') break;
        var p = Element.getStyle(element, 'position');
        if (p == 'relative' || p == 'absolute') break;
      }
    } while (element);
    return [valueL, valueT];
  },

  offsetParent: 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;
  },

  // 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 = this.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 = this.realOffset(element);

    this.xcomp = x + offsetcache[0] - this.deltaX;
    this.ycomp = y + offsetcache[1] - this.deltaY;
    this.offset = this.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;
  },

  page: 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)
        if (Element.getStyle(element,'position')=='absolute') break;

    } while (element = element.offsetParent);

    element = forElement;
    do {
      if (!window.opera || element.tagName=='BODY') {
        valueT -= element.scrollTop  || 0;
        valueL -= element.scrollLeft || 0;
      }
    } while (element = element.parentNode);

    return [valueL, valueT];
  },

  clone: function(source, target) {
    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 = Position.page(source);

    // find coordinate system to use
    target = $(target);
    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(target,'position') == 'absolute') {
      parent = Position.offsetParent(target);
      delta = Position.page(parent);
    }

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

  absolutize: function(element) {
    element = $(element);
    if (element.style.position == 'absolute') return;
    Position.prepare();

    var offsets = Position.positionedOffset(element);
    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';;
  },

  relativize: function(element) {
    element = $(element);
    if (element.style.position == 'relative') return;
    Position.prepare();

    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;
  }
}

// Safari returns margins on body which is incorrect if the child is absolutely
// positioned.  For performance reasons, redefine Position.cumulativeOffset for
// KHTML/WebKit only.
if (/Konqueror|Safari|KHTML/.test(navigator.userAgent)) {
  Position.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 [valueL, valueT];
  }
}

Element.addMethods();

/* - ++resource++base2-dom-fp.js - */
var base2={name:"base2",version:"1.0 (beta 2)",exports:"Base,Package,Abstract,Module,Enumerable,Map,Collection,RegGrp,"+"assert,assertArity,assertType,assignID,copy,detect,extend,"+"forEach,format,global,instanceOf,match,rescape,slice,trim,typeOf,"+"I,K,Undefined,Null,True,False,bind,delegate,flip,not,unbind",global:this,detect:new function(_){var global=_;var jscript=NaN/*@cc_on||@_jscript_version@*/;var java=false;if(_.navigator){var MSIE=/MSIE[\d.]+/g;var element=document.createElement("span");var userAgent=navigator.userAgent.replace(/([a-z])[\s\/](\d)/gi,"$1$2");if(!jscript)userAgent=userAgent.replace(MSIE,"");
if(MSIE.test(userAgent))userAgent=userAgent.match(MSIE)[0]+" "+userAgent.replace(MSIE,"");userAgent=navigator.platform+" "+userAgent;java&=navigator.javaEnabled()}return function(a){var r=false;var b=a.charAt(0)=="!";if(b)a=a.slice(1);if(a.charAt(0)=="("){if(a=="(java)"){throw "base2 patched : java cannot be detected."}try{eval("r=!!"+a)}catch(e){}}else{r=new RegExp("("+a+")","i").test(userAgent)}return!!(b^r)}}(this)};new function(_){var _0="function base(o,a){return o.base.apply(o,a)};";eval(_0);var detect=base2.detect;var Undefined=K(),Null=K(null),True=K(true),False=K(false);var _1=/%([1-9])/g;var _2=/^\s\s*/;var _3=/\s\s*$/;var _4=/([\/()[\]{}|*+-.,^$?\\])/g;var _5=/eval/.test(detect)?/\bbase\s*\(/:/.*/;var _6=["constructor","toString","valueOf"];var _7=detect("(jscript)")?new RegExp("^"+rescape(isNaN).replace(/isNaN/,"\\w+")+"$"):{test:False};var _8=1;var _9=Array.prototype.slice;var slice=Array.slice||function(a){return _9.apply(a,_9.call(arguments,1))};_10();var _11=function(a,b){base2.__prototyping=this.prototype;var c=new this;extend(c,a);delete base2.__prototyping;var d=c.constructor;function e(){if(!base2.__prototyping){if(this.constructor==arguments.callee||this.__constructing){this.__constructing=true;d.apply(this,arguments);delete this.__constructing}else{return extend(arguments[0],c)}}return this};c.constructor=e;for(var i in Base)e[i]=this[i];e.ancestor=this;e.base=Undefined;e.init=Undefined;extend(e,b);e.prototype=c;e.init();return e};var Base=_11.call(Object,{constructor:function(){if(arguments.length>0){this.extend(arguments[0])}},base:function(){},extend:delegate(extend)},Base={ancestorOf:delegate(_12),extend:_11,forEach:delegate(_10),implement:function(a){if(typeof a=="function"){if(_12(Base,a)){a(this.prototype)}}else{extend(this.prototype,a)}return this}});var Package=Base.extend({constructor:function(d,e){this.extend(e);if(this.init)this.init();if(this.name!="base2"){if(!this.parent)this.parent=base2;this.parent.addName(this.name,this);this.namespace=format("var %1=%2;",this.name,String(this).slice(1,-1))}var f=/[^\s,]+/g;if(d){d.imports=Array2.reduce(this.imports.match(f),function(a,b){eval("var ns=base2."+b);assert(ns,format("Package not found: '%1'.",b),ReferenceError);return a+=ns.namespace},_0+base2.namespace+JavaScript.namespace);d.exports=Array2.reduce(this.exports.match(f),function(a,b){var c=this.name+"."+b;this.namespace+="var "+b+"="+c+";";return a+="if(!"+c+")"+c+"="+b+";"},"",this)}},exports:"",imports:"",name:"",namespace:"",parent:null,addName:function(a,b){if(!this[a]){this[a]=b;this.exports+=","+a;this.namespace+=format("var %1=%2.%1;",a,this.name)}},addPackage:function(a){this.addName(a,new Package(null,{name:a,parent:this}))},toString:function(){return format("[%1]",this.parent?String(this.parent).slice(1,-1)+"."+this.name:this.name)}});var Abstract=Base.extend({constructor:function(){throw new TypeError("Class cannot be instantiated.");}});var Module=Abstract.extend(null,{extend:function(a,b){var c=this.base();c.implement(this);c.implement(a);extend(c,b);c.init();return c},implement:function(d){var e=this;if(typeof d=="function"){if(!_12(d,e)){this.base(d)}if(_12(Module,d)){forEach(d,function(a,b){if(!e[b]){if(typeof a=="function"&&a.call&&d.prototype[b]){a=function(){return d[b].apply(d,arguments)}}e[b]=a}})}}else{extend(e,d);_10(Object,d,function(b,c){if(c.charAt(0)=="@"){if(detect(c.slice(1))){forEach(b,arguments.callee)}}else if(typeof b=="function"&&b.call){e.prototype[c]=function(){var a=_9.call(arguments);a.unshift(this);return e[c].apply(e,a)}}})}return e}});var Enumerable=Module.extend({every:function(c,d,e){var f=true;try{this.forEach(c,function(a,b){f=d.call(e,a,b,c);if(!f)throw StopIteration;})}catch(error){if(error!=StopIteration)throw error;}return!!f},filter:function(d,e,f){var i=0;return this.reduce(d,function(a,b,c){if(e.call(f,b,c,d)){a[i++]=b}return a},[])},invoke:function(b,c){var d=_9.call(arguments,2);return this.map(b,(typeof c=="function")?function(a){return(a==null)?undefined:c.apply(a,d)}:function(a){return(a==null)?undefined:a[c].apply(a,d)})},map:function(c,d,e){var f=[],i=0;this.forEach(c,function(a,b){f[i++]=d.call(e,a,b,c)});return f},pluck:function(b,c){return this.map(b,function(a){return(a==null)?undefined:a[c]})},reduce:function(c,d,e,f){var g=arguments.length>2;this.forEach(c,function(a,b){if(g){e=d.call(f,e,a,b,c)}else{e=a;g=true}});return e},some:function(a,b,c){return!this.every(a,not(b),c)}},{forEach:forEach});var _13="#";var Map=Base.extend({constructor:function(a){this.merge(a)},copy:delegate(copy),forEach:function(a,b){for(var c in this)if(c.charAt(0)==_13){a.call(b,this[c],c.slice(1),this)}},get:function(a){return this[_13+a]},getKeys:function(){return this.map(flip(I))},getValues:function(){return this.map(I)},has:function(a){/*@cc_on@*//*@if(@_14<5.5)return $Legacy.has(this,_13+a);@else@*/return _13+a in this;/*@end@*/},merge:function(b){var c=flip(this.put);forEach(arguments,function(a){forEach(a,c,this)},this);return this},remove:function(a){delete this[_13+a]},put:function(a,b){if(arguments.length==1)b=a;this[_13+a]=b},size:function(){var a=0;for(var b in this)if(b.charAt(0)==_13)a++;return a},union:function(a){return this.merge.apply(this.copy(),arguments)}});Map.implement(Enumerable);var _15="~";var Collection=Map.extend({constructor:function(a){this[_15]=new Array2;this.base(a)},add:function(a,b){assert(!this.has(a),"Duplicate key '"+a+"'.");this.put.apply(this,arguments)},copy:function(){var a=this.base();a[_15]=this[_15].copy();return a},forEach:function(a,b){var c=this[_15];var d=c.length;for(var i=0;i<d;i++){a.call(b,this[_13+c[i]],c[i],this)}},getAt:function(a){if(a<0)a+=this[_15].length;var b=this[_15][a];return(b===undefined)?undefined:this[_13+b]},getKeys:function(){return this[_15].concat()},indexOf:function(a){return this[_15].indexOf(String(a))},insertAt:function(a,b,c){assert(Math.abs(a)<this[_15].length,"Index out of bounds.");assert(!this.has(b),"Duplicate key '"+b+"'.");this[_15].insertAt(a,String(b));this[_13+b]==null;this.put.apply(this,_9.call(arguments,1))},item:function(a){return this[typeof a=="number"?"getAt":"get"](a)},put:function(a,b){if(arguments.length==1)b=a;if(!this.has(a)){this[_15].push(String(a))}var c=this.constructor;if(c.Item&&!instanceOf(b,c.Item)){b=c.create.apply(c,arguments)}this[_13+a]=b},putAt:function(a,b){assert(Math.abs(a)<this[_15].length,"Index out of bounds.");arguments[0]=this[_15].item(a);this.put.apply(this,arguments)},remove:function(a){if(this.has(a)){this[_15].remove(String(a));delete this[_13+a]}},removeAt:function(a){var b=this[_15].removeAt(a);delete this[_13+b]},reverse:function(){this[_15].reverse();return this},size:function(){return this[_15].length},sort:function(c){if(c){var d=this;this[_15].sort(function(a,b){return c(d[_13+a],d[_13+b],a,b)})}else this[_15].sort();return this},toString:function(){return String(this[_15])}},{Item:null,create:function(a,b){return this.Item?new this.Item(a,b):b},extend:function(a,b){var c=this.base(a);c.create=this.create;extend(c,b);if(!c.Item){c.Item=this.Item}else if(typeof c.Item!="function"){c.Item=(this.Item||Base).extend(c.Item)}c.init();return c}});var _16=/\\(\d+)/g,_17=/\\./g,_18=/\(\?[:=!]|\[[^\]]+\]/g,_19=/\(/g,_20=/\$(\d+)/,_21=/^\$\d+$/;var RegGrp=Collection.extend({constructor:function(a,b){this.base(a);if(typeof b=="string"){this.global=/g/.test(b);this.ignoreCase=/i/.test(b)}},global:true,ignoreCase:false,exec:function(f,g){var h=(this.global?"g":"")+(this.ignoreCase?"i":"");f=String(f)+"";if(arguments.length==1){var j=this;var k=this[_15];g=function(a){if(a){var b,c=1,i=0;while((b=j[_13+k[i++]])){var d=c+b.length+1;if(arguments[c]){var e=b.replacement;switch(typeof e){case"function":return e.apply(j,_9.call(arguments,c,d));case"number":return arguments[c+e];default:return e}}c=d}}return""}}return f.replace(new RegExp(this,h),g)},insertAt:function(a,b,c){if(instanceOf(b,RegExp)){arguments[1]=b.source}return base(this,arguments)},test:function(a){return this.exec(a)!=a},toString:function(){var e=0;return"("+this.map(function(c){var d=String(c).replace(_16,function(a,b){return"\\"+(1+Number(b)+e)});e+=c.length+1;return d}).join(")|(")+")"}},{IGNORE:"$0",init:function(){forEach("add,get,has,put,remove".split(","),function(b){_22(this,b,function(a){if(instanceOf(a,RegExp)){arguments[0]=a.source}return base(this,arguments)})},this.prototype)},Item:{constructor:function(a,b){if(typeof b=="number")b=String(b);else if(b==null)b="";if(typeof b=="string"&&_20.test(b)){if(_21.test(b)){b=parseInt(b.slice(1))}else{var Q=/'/.test(b.replace(/\\./g,""))?'"':"'";b=b.replace(/\n/g,"\\n").replace(/\r/g,"\\r").replace(/\$(\d+)/g,Q+"+(arguments[$1]||"+Q+Q+")+"+Q);b=new Function("return "+Q+b.replace(/(['"])\1\+(.*)\+\1\1$/,"$1")+Q)}}this.length=RegGrp.count(a);this.replacement=b;this.toString=K(String(a))},length:0,replacement:""},count:function(a){a=String(a).replace(_17,"").replace(_18,"");return match(a,_19).length}});var JavaScript={name:"JavaScript",version:base2.version,exports:"Array2,Date2,String2",namespace:"",bind:function(c){forEach(this.exports.match(/\w+/g),function(a){var b=a.slice(0,-1);extend(c[b],this[a]);this[a](c[b].prototype)},this);return this}};if((new Date).getYear()>1900){Date.prototype.getYear=function(){return this.getFullYear()-1900};Date.prototype.setYear=function(a){return this.setFullYear(a+1900)}}Function.prototype.prototype={};if("".replace(/^/,K("$$"))=="$"){extend(String.prototype,"replace",function(a,b){if(typeof b=="function"){var c=b;b=function(){return String(c.apply(null,arguments)).split("$").join("$$")}}return this.base(a,b)})}var Array2=_23(Array,Array,"concat,join,pop,push,reverse,shift,slice,sort,splice,unshift",[Enumerable,{combine:function(d,e){if(!e)e=d;return this.reduce(d,function(a,b,c){a[b]=e[c];return a},{})},contains:function(a,b){return this.indexOf(a,b)!=-1},copy:function(a){var b=_9.call(a);if(!b.swap)this(b);return b},flatten:function(c){var d=0;return this.reduce(c,function(a,b){if(this.like(b)){this.reduce(b,arguments.callee,a,this)}else{a[d++]=b}return a},[],this)},forEach:_24,indexOf:function(a,b,c){var d=a.length;if(c==null){c=0}else if(c<0){c=Math.max(0,d+c)}for(var i=c;i<d;i++){if(a[i]===b)return i}return-1},insertAt:function(a,b,c){this.splice(a,b,0,c);return c},item:function(a,b){if(b<0)b+=a.length;return a[b]},lastIndexOf:function(a,b,c){var d=a.length;if(c==null){c=d-1}else if(c<0){c=Math.max(0,d+c)}for(var i=c;i>=0;i--){if(a[i]===b)return i}return-1},map:function(c,d,e){var f=[];this.forEach(c,function(a,b){f[b]=d.call(e,a,b,c)});return f},remove:function(a,b){var c=this.indexOf(a,b);if(c!=-1)this.removeAt(a,c);return b},removeAt:function(a,b){return this.splice(a,b,1)},swap:function(a,b,c){if(b<0)b+=a.length;if(c<0)c+=a.length;var d=a[b];a[b]=a[c];a[c]=d;return a}}]);Array2.reduce=Enumerable.reduce;Array2.like=function(a){return!!(a&&typeof a=="object"&&typeof a.length=="number")};var _25=/^((-\d+|\d{4,})(-(\d{2})(-(\d{2}))?)?)?T((\d{2})(:(\d{2})(:(\d{2})(\.(\d{1,3})(\d)?\d*)?)?)?)?(([+-])(\d{2})(:(\d{2}))?|Z)?$/;var _26={FullYear:2,Month:4,Date:6,Hours:8,Minutes:10,Seconds:12,Milliseconds:14};var _27={Hectomicroseconds:15,UTC:16,Sign:17,Hours:18,Minutes:20};var _28=/(((00)?:0+)?:0+)?\.0+$/;var _29=/(T[0-9:.]+)$/;var Date2=_23(Date,function(a,b,c,h,m,s,d){switch(arguments.length){case 0:return new Date;case 1:return new Date(a);default:return new Date(a,b,arguments.length==2?1:c,h||0,m||0,s||0,d||0)}},"",[{toISOString:function(c){var d="####-##-##T##:##:##.###";for(var e in _26){d=d.replace(/#+/,function(a){var b=c["getUTC"+e]();if(e=="Month")b++;return("000"+b).slice(-a.length)})}return d.replace(_28,"").replace(_29,"$1Z")}}]);Date2.now=function(){return(new Date).valueOf()};Date2.parse=function(a,b){if(arguments.length>1){assertType(b,"number","defaultDate should be of type 'number'.")}var c=String(a).match(_25);if(c){if(c[_26.Month])c[_26.Month]--;if(c[_27.Hectomicroseconds]>=5)c[_26.Milliseconds]++;var d=new Date(b||0);var e=c[_27.UTC]||c[_27.Hours]?"UTC":"";for(var f in _26){var g=c[_26[f]];if(!g)continue;d["set"+e+f](g);if(d["get"+e+f]()!=c[_26[f]]){return NaN}}if(c[_27.Hours]){var h=Number(c[_27.Sign]+c[_27.Hours]);var i=Number(c[_27.Sign]+(c[_27.Minutes]||0));d.setUTCMinutes(d.getUTCMinutes()+(h*60)+i)}return d.valueOf()}else{return Date.parse(a)}};var String2=_23(String,function(a){return new String(arguments.length==0?"":a)},"charAt,charCodeAt,concat,indexOf,lastIndexOf,match,replace,search,slice,split,substr,substring,toLowerCase,toUpperCase",[{trim:trim}]);function _23(c,constructor,d,e){var f=Module.extend();forEach(d.match(/\w+/g),function(a){f[a]=unbind(c.prototype[a])});forEach(e,f.implement,f);var g=function(){return f(this.constructor==f?constructor.apply(null,arguments):arguments[0])};g.prototype=f.prototype;forEach(f,function(a,b){if(c[b]){f[b]=c[b];delete f.prototype[b]}g[b]=f[b]});g.ancestor=Object;delete g.extend;if(c!=Array)delete g.forEach;return g};function extend(a,b){if(a&&b){if(arguments.length>2){var c=b;b={};b[c]=arguments[2]}var d=(typeof b=="function"?Function:Object).prototype;var i=_6.length,c;if(base2.__prototyping){while(c=_6[--i]){var e=b[c];if(e!=d[c]){if(_5.test(e)){_22(a,c,e)}else{a[c]=e}}}}for(c in b){if(d[c]===undefined){var e=b[c];if(c.charAt(0)=="@"){if(detect(c.slice(1)))arguments.callee(a,e);continue}var f=a[c];if(f&&typeof e=="function"){if(e!=f&&(!f.method||!_12(e,f))){if(_5.test(e)){_22(a,c,e)}else{e.ancestor=f;a[c]=e}}}else{a[c]=e}}}}return a};function _12(a,b){while(b){if(!b.ancestor)return false;b=b.ancestor;if(b==a)return true}return false};function _22(c,d,e){var f=c[d];var g=base2.__prototyping;if(g&&f!=g[d])g=null;function h(){var a=this.base;this.base=g?g[d]:f;var b=e.apply(this,arguments);this.base=a;return b};h.ancestor=f;c[d]=h};if(typeof StopIteration=="undefined"){StopIteration=new Error("StopIteration")}function forEach(a,b,c,d){if(a==null)return;if(!d){if(typeof a=="function"&&a.call){d=Function}else if(typeof a.forEach=="function"&&a.forEach!=arguments.callee){a.forEach(b,c);return}else if(typeof a.length=="number"){_24(a,b,c);return}}_10(d||Object,a,b,c)};function _24(a,b,c){if(a==null)return;var d=a.length,i;if(typeof a=="string"){for(i=0;i<d;i++){b.call(c,a.charAt(i),i,a)}}else{for(i=0;i<d;i++){/*@cc_on@*//*@if(@_14<5.2)if($Legacy.has(a,i))@else@*/if(i in a)/*@end@*/b.call(c,a[i],i,a)}}};function _10(g,h,j,k){var l=function(){this.i=1};l.prototype={i:1};var m=0;for(var i in new l)m++;_10=(m>1)?function(a,b,c,d){var e={};for(var f in b){if(!e[f]&&a.prototype[f]===undefined){e[f]=true;c.call(d,b[f],f,b)}}}:function(a,b,c,d){for(var e in b){if(a.prototype[e]===undefined){c.call(d,b[e],e,b)}}};_10(g,h,j,k)};function typeOf(a){var b=typeof a;switch(b){case"object":return a===null?"null":typeof a.call=="function"||_7.test(a)?"function":b;case"function":return typeof a.call=="function"?b:"object";default:return b}};function instanceOf(a,b){if(typeof b!="function"){throw new TypeError("Invalid 'instanceOf' operand.");}if(a==null)return false;/*@cc_on if(typeof a.constructor!="function"){return typeOf(a)==typeof b.prototype.valueOf()}@*//*@if(@_14<5.1)if($Legacy.instanceOf(a,b))return true;@else@*/if(a instanceof b)return true;/*@end@*/if(Base.ancestorOf==b.ancestorOf)return false;if(Base.ancestorOf==a.constructor.ancestorOf)return b==Object;switch(b){case Array:return!!(typeof a=="object"&&a.join&&a.splice);case Function:return typeOf(a)=="function";case RegExp:return typeof a.constructor.$1=="string";case Date:return!!a.getTimezoneOffset;case String:case Number:case Boolean:return typeof a==typeof b.prototype.valueOf();case Object:return true}return false};function assert(a,b,c){if(!a){throw new(c||Error)(b||"Assertion failed.");}};function assertArity(a,b,c){if(b==null)b=a.callee.length;if(a.length<b){throw new SyntaxError(c||"Not enough arguments.");}};function assertType(a,b,c){if(b&&(typeof b=="function"?!instanceOf(a,b):typeOf(a)!=b)){throw new TypeError(c||"Invalid type.");}};function assignID(a){if(!a.base2ID)a.base2ID="b2_"+_8++;return a.base2ID};function copy(a){var b=function(){};b.prototype=a;return new b};function format(c){var d=arguments;var e=new RegExp("%([1-"+arguments.length+"])","g");return String(c).replace(e,function(a,b){return d[b]})};function match(a,b){return String(a).match(b)||[]};function rescape(a){return String(a).replace(_4,"\\$1")};function trim(a){return String(a).replace(_2,"").replace(_3,"")};function I(i){return i};function K(k){return function(){return k}};function bind(a,b){var c=_9.call(arguments,2);return c.length==0?function(){return a.apply(b,arguments)}:function(){return a.apply(b,c.concat.apply(c,arguments))}};function delegate(b,c){return function(){var a=_9.call(arguments);a.unshift(this);return b.apply(c,a)}};function flip(a){return function(){return a.apply(this,Array2.swap(arguments,0,1))}};function not(a){return function(){return!a.apply(this,arguments)}};function unbind(b){return function(a){return b.apply(a,_9.call(arguments,1))}};base2=new Package(this,base2);eval(this.exports);base2.extend=extend;forEach(Enumerable,function(a,b){if(!Module[b])base2.addName(b,bind(a,Enumerable))});JavaScript=new Package(this,JavaScript);eval(this.exports)};new function(_){var DOM=new base2.Package(this,{name:"DOM",version:"1.0 (beta 2)",exports:"Interface,Binding,Node,Document,Element,AbstractView,HTMLDocument,HTMLElement,"+"Selector,Traversal,XPathParser,NodeSelector,DocumentSelector,ElementSelector,"+"StaticNodeList,Event,EventTarget,DocumentEvent,ViewCSS,CSSStyleDeclaration",bind:function(a){if(a&&a.nodeType){var b=assignID(a);if(!DOM.bind[b]){switch(a.nodeType){case 1:if(typeof a.className=="string"){(HTMLElement.bindings[a.tagName]||HTMLElement).bind(a)}else{Element.bind(a)}break;case 9:if(a.writeln){HTMLDocument.bind(a)}else{Document.bind(a)}break;default:Node.bind(a)}DOM.bind[b]=true}}return a},"@MSIE5.+win":{bind:function(a){if(a&&a.writeln){a.nodeType=9}return this.base(a)}}});eval(this.imports);var _30=detect("MSIE");var _31=detect("MSIE5");var Interface=Module.extend(null,{implement:function(e){var f=this;if(Interface.ancestorOf(e)){forEach(e,function(a,b){if(e[b]._32){f[b]=function(){return e[b].apply(e,arguments)}}})}else if(typeof e=="object"){this.forEach(e,function(a,b){if(b.charAt(0)=="@"){forEach(a,arguments.callee)}else if(typeof a=="function"&&a.call){if(!f[b]){var c="var fn=function _%1(%2){%3.base=%3.%1.ancestor;var m=%3.base?'base':'%1';return %3[m](%4)}";var d="abcdefghij".split("").slice(-a.length);eval(format(c,b,d,d[0],d.slice(1)));fn._32=b;f[b]=fn}}})}return this.base(e)}});var Binding=Interface.extend(null,{bind:function(a){return extend(a,this.prototype)}});var Node=Binding.extend({"@!(element.compareDocumentPosition)":{compareDocumentPosition:function(a,b){if(Traversal.contains(a,b)){return 4|16}else if(Traversal.contains(b,a)){return 2|8}var c=_33(a);var d=_33(b);if(c<d){return 4}else if(c>d){return 2}return 0}}});var _33=document.documentElement.sourceIndex?function(a){return a.sourceIndex}:function(a){var b=0;while(a){b=Traversal.getNodeIndex(a)+"."+b;a=a.parentNode}return b};var Document=Node.extend(null,{bind:function(b){extend(b,"createElement",function(a){return DOM.bind(this.base(a))});AbstractView.bind(b.defaultView);if(b!=window.document)new DOMContentLoadedEvent(b);return this.base(b)},"@!(document.defaultView)":{bind:function(a){a.defaultView=Traversal.getDefaultView(a);return this.base(a)}}});var _34=/^(href|src)$/;var _35={"class":"className","for":"htmlFor"};var Element=Node.extend({"@MSIE.+win":{getAttribute:function(a,b,c){if(a.className===undefined){return this.base(a,b)}var d=_36(a,b);if(d&&(d.specified||b=="value")){if(_34.test(b)){return this.base(a,b,2)}else if(b=="style"){return a.style.cssText}else{return d.nodeValue}}return null},setAttribute:function(a,b,c){if(a.className===undefined){this.base(a,b,c)}else if(b=="style"){a.style.cssText=c}else{c=String(c);var d=_36(a,b);if(d){d.nodeValue=c}else{this.base(a,_35[b]||b,c)}}}},"@!(element.hasAttribute)":{hasAttribute:function(a,b){return this.getAttribute(a,b)!=null}}});extend(Element.prototype,"cloneNode",function(a){var b=this.base(a||false);b.base2ID=undefined;return b});if(_30){var _37="colSpan,rowSpan,vAlign,dateTime,accessKey,tabIndex,encType,maxLength,readOnly,longDesc";extend(_35,Array2.combine(_37.toLowerCase().split(","),_37.split(",")));var _36=_31?function(a,b){return a.attributes[b]||a.attributes[_35[b.toLowerCase()]]}:function(a,b){return a.getAttributeNode(b)}}var TEXT=_30?"innerText":"textContent";var Traversal=Module.extend({getDefaultView:function(a){return this.getDocument(a).defaultView},getNextElementSibling:function(a){while(a&&(a=a.nextSibling)&&!this.isElement(a))continue;return a},getNodeIndex:function(a){var b=0;while(a&&(a=a.previousSibling))b++;return b},getOwnerDocument:function(a){return a.ownerDocument},getPreviousElementSibling:function(a){while(a&&(a=a.previousSibling)&&!this.isElement(a))continue;return a},getTextContent:function(a){return a[TEXT]},isEmpty:function(a){a=a.firstChild;while(a){if(a.nodeType==3||this.isElement(a))return false;a=a.nextSibling}return true},setTextContent:function(a,b){return a[TEXT]=b},"@MSIE":{getDefaultView:function(a){return(a.document||a).parentWindow},"@MSIE5":{getOwnerDocument:function(a){return a.ownerDocument||a.document}}}},{contains:function(a,b){while(b&&(b=b.parentNode)&&a!=b)continue;return!!b},getDocument:function(a){return this.isDocument(a)?a:this.getOwnerDocument(a)},isDocument:function(a){return!!(a&&a.documentElement)},isElement:function(a){return!!(a&&a.nodeType==1)},"@(element.contains)":{contains:function(a,b){return a!=b&&(this.isDocument(a)?a==this.getOwnerDocument(b):a.contains(b))}},"@MSIE5":{isElement:function(a){return!!(a&&a.nodeType==1&&a.nodeName!="!")}}});var AbstractView=Binding.extend();var Event=Binding.extend({"@!(document.createEvent)":{initEvent:function(a,b,c,d){a.type=b;a.bubbles=c;a.cancelable=d;a.timeStamp=new Date().valueOf()},"@MSIE":{initEvent:function(a,b,c,d){this.base(a,b,c,d);a.cancelBubble=!a.bubbles},preventDefault:function(a){if(a.cancelable!==false){a.returnValue=false}},stopPropagation:function(a){a.cancelBubble=true}}}},{"@!(document.createEvent)":{"@MSIE":{bind:function(a){if(!a.timeStamp){a.bubbles=!!_38[a.type];a.cancelable=!!_39[a.type];a.timeStamp=new Date().valueOf()}if(!a.target){a.target=a.srcElement}a.relatedTarget=a[(a.type=="mouseout"?"to":"from")+"Element"];return this.base(a)}}}});if(_30){var _38="abort,error,select,change,resize,scroll";var _39="click,mousedown,mouseup,mouseover,mousemove,mouseout,keydown,keyup,submit,reset";_38=Array2.combine((_38+","+_39).split(","));_39=Array2.combine(_39.split(","))}var EventTarget=Interface.extend({"@!(element.addEventListener)":{addEventListener:function(a,b,c,d){var e=assignID(a);var f=assignID(c);var g=_40[e];if(!g)g=_40[e]={};var h=g[b];var i=a["on"+b];if(!h){h=g[b]={};if(i)h[0]=i}h[f]=c;if(i!==undefined){a["on"+b]=_40._41}},dispatchEvent:function(a,b){return _41.call(a,b)},removeEventListener:function(a,b,c,d){var e=_40[a.base2ID];if(e&&e[b]){delete e[b][c.base2ID]}},"@(element.fireEvent)":{dispatchEvent:function(a,b){var c="on"+b.type;b.target=a;if(a[c]===undefined){return this.base(a,b)}else{return a.fireEvent(c,b)}}}}});var _40=new Base({_41:_41,"@MSIE":{_41:function(){var a=this;var b=(a.document||a).parentWindow;if(a.Infinity)a=b;return _41.call(a,b.event)}}});function _41(a){var b=true;var c=_40[this.base2ID];if(c){Event.bind(a);var d=c[a.type];for(var i in d){var listener=d[i];if(listener.handleEvent){var result=listener.handleEvent(a)}else{result=listener.call(this,a)}if(result===false||a.returnValue===false)b=false}}return b};var DocumentEvent=Interface.extend({"@!(document.createEvent)":{createEvent:function(a,b){return Event.bind({})},"@(document.createEventObject)":{createEvent:function(a,b){return Event.bind(a.createEventObject())}}},"@(document.createEvent)":{"@!(document.createEvent('Events'))":{createEvent:function(a,b){return this.base(a,b=="Events"?"UIEvents":b)}}}});var DOMContentLoadedEvent=Base.extend({constructor:function(b){var c=false;this.fire=function(){if(!c){c=true;setTimeout(function(){var a=DocumentEvent.createEvent(b,"Events");Event.initEvent(a,"DOMContentLoaded",false,false);EventTarget.dispatchEvent(b,a)},1)}};EventTarget.addEventListener(b,"DOMContentLoaded",function(){c=true},false);this.listen(b)},listen:function(a){EventTarget.addEventListener(Traversal.getDefaultView(a),"load",this.fire,false)},"@MSIE.+win":{listen:function(a){if(a.readyState!="complete"){var b=this;a.write("<script id=__ready defer src=//:><\/script>");a.all.__ready.onreadystatechange=function(){if(this.readyState=="complete"){this.removeNode();b.fire()}}}}},"@KHTML":{listen:function(a){if(a.readyState!="complete"){var b=this;var c=setInterval(function(){if(/loaded|complete/.test(a.readyState)){clearInterval(c);b.fire()}},100)}}}});new DOMContentLoadedEvent(document);Document.implement(DocumentEvent);Document.implement(EventTarget);Element.implement(EventTarget);var _42=/^\d+(px)?$/i;var _43=/(width|height|top|bottom|left|right|fontSize)$/;var _44=/^(color|backgroundColor)$/;var ViewCSS=Interface.extend({"@!(document.defaultView.getComputedStyle)":{"@MSIE":{getComputedStyle:function(a,b,c){var d=b.currentStyle;var e={};for(var i in d){if(_43.test(i)){e[i]=_45(b,e[i])+"px"}else if(_44.test(i)){e[i]=_46(b,i=="color"?"ForeColor":"BackColor")}else{e[i]=d[i]}}return e}}},getComputedStyle:function(a,b,c){return _47.bind(this.base(a,b,c))}},{toCamelCase:function(c){return c.replace(/\-([a-z])/g,function(a,b){return b.toUpperCase()})}});function _45(a,b){if(_42.test(b))return parseInt(b);var c=a.style.left;var d=a.runtimeStyle.left;a.runtimeStyle.left=a.currentStyle.left;a.style.left=b||0;b=a.style.pixelLeft;a.style.left=c;a.runtimeStyle.left=d;return b};function _46(a,b){var c=a.document.body.createTextRange();c.moveToElementText(a);var d=c.queryCommandValue(b);return format("rgb(%1,%2,%3)",d&0xff,(d&0xff00)>>8,(d&0xff0000)>>16)};var _47=Binding.extend({getPropertyValue:function(a,b){return this.base(a,_48[b]||b)},"@MSIE.+win":{getPropertyValue:function(a,b){return b=="float"?a.styleFloat:a[ViewCSS.toCamelCase(b)]}}});var CSSStyleDeclaration=_47.extend({setProperty:function(a,b,c,d){return this.base(a,_48[b]||b,c,d)},"@MSIE.+win":{setProperty:function(a,b,c,d){if(b=="opacity"){c*=100;a.opacity=c;a.zoom=1;a.filter="Alpha(opacity="+c+")"}else{a.setAttribute(b,c)}}}},{"@MSIE":{bind:function(a){a.getPropertyValue=this.prototype.getPropertyValue;a.setProperty=this.prototype.setProperty;return a}}});var _48=new Base({"@Gecko":{opacity:"-moz-opacity"},"@KHTML":{opacity:"-khtml-opacity"}});with(CSSStyleDeclaration.prototype)getPropertyValue.toString=setProperty.toString=function(){return"[base2]"};AbstractView.implement(ViewCSS);var NodeSelector=Interface.extend({"@!(element.querySelector)":{querySelector:function(a,b){return new Selector(b).exec(a,1)},querySelectorAll:function(a,b){return new Selector(b).exec(a)}}});extend(NodeSelector.prototype,{querySelector:function(a){return DOM.bind(this.base(a))},querySelectorAll:function(b){return extend(this.base(b),"item",function(a){return DOM.bind(this.base(a))})}});var DocumentSelector=NodeSelector.extend();var ElementSelector=NodeSelector.extend({"@!(element.matchesSelector)":{matchesSelector:function(a,b){return new Selector(b).test(a)}}});var StaticNodeList=Base.extend({constructor:function(b){b=b||[];this.length=b.length;this.item=function(a){return b[a]}},length:0,forEach:function(a,b){for(var 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this.sorter.exec(a.replace(_53,">* "))},parse:function(a){return this.cache[a]||(this.cache[a]=this.unescape(this.exec(this.escape(a))))},unescape:function(c){var d=this._56;return c.replace(_54,function(a,b){return d[b-1]})}});function _57(c,d,e,f,g,h,i,j){f=/last/i.test(c)?f+"+1-":"";if(!isNaN(d))d="0n+"+d;else if(d=="even")d="2n";else if(d=="odd")d="2n+1";d=d.split("n");var a=d[0]?(d[0]=="-")?-1:parseInt(d[0]):1;var b=parseInt(d[1])||0;var k=a<0;if(k){a=-a;if(a==1)b++}var l=format(a==0?"%3%7"+(f+b):"(%4%3-%2)%6%1%70%5%4%3>=%2",a,b,e,f,h,i,j);if(k)l=g+"("+l+")";return l};var XPathParser=CSSParser.extend({constructor:function(){this.base(XPathParser.rules);this.sorter.putAt(1,"$1$4$3$6")},escape:function(a){return this.base(a).replace(/,/g,"\x02")},unescape:function(b){return this.base(b.replace(/\[self::\*\]/g,"").replace(/(^|\x02)\//g,"$1./").replace(/\x02/g," | 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g+"[self::"+c+"]"}}}),types:{identifiers:function(a,b){this[rescape(b)+"([\\w-]+)"]=a},combinators:function(a,b){this[rescape(b)+"(\\*|[\\w-]+)"]=a},attributes:function(a,b){this["\\[([\\w-]+)\\s*"+rescape(b)+"\\s*([^\\]]*)\\]"]=a},pseudoClasses:function(a,b){this[":"+b.replace(/\(\)$/,"\\(([^)]+)\\)")]=a}},values:{identifiers:{"#":"[@id='$1'][1]",".":"[contains(concat(' ',@class,' '),' $1 ')]"},combinators:{" ":"/descendant::$1",">":"/child::$1","+":"/following-sibling::*[1][self::$1]","~":"/following-sibling::$1"},attributes:{"*=":"[contains(@$1,'$2')]","^=":"[starts-with(@$1,'$2')]","$=":"[substring(@$1,string-length(@$1)-string-length('$2')+1)='$2']","~=":"[contains(concat(' ',@$1,' '),' $2 ')]","|=":"[contains(concat('-',@$1,'-'),'-$2-')]","!=":"[not(@$1='$2')]","=":"[@$1='$2']"},pseudoClasses:{"empty":"[not(child::*) and 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c=b.exec(Traversal.getOwnerDocument(a),true);a.removeAttribute("b2-test");return c==a},toXPath:function(){return Selector.toXPath(this)},"@(XPathResult)":{exec:function(a,b){if(_61.test(this)){return this.base(a,b)}var c=Traversal.getDocument(a);var d=b?9:7;var e=c.evaluate(this.toXPath(),a,null,d,null);return b?e.singleNodeValue:e}},"@MSIE":{exec:function(a,b){if(typeof a.selectNodes!="undefined"&&!_61.test(this)){var c=b?"selectSingleNode":"selectNodes";return a[c](this.toXPath())}return this.base(a,b)}},"@(true)":{exec:function(a,b){try{var c=this.base(a||document,b)}catch(error){throw new SyntaxError(format("'%1' is not a valid CSS selector.",this));}return b?c:new StaticNodeList(c)}}},{toXPath:function(a){if(!_62)_62=new XPathParser;return _62.parse(a)}});var _61=":(checked|disabled|enabled|contains)|^(#[\\w-]+\\s*)?\\w+$";if(detect("KHTML")){if(detect("WebKit5")){_61+="|nth\\-|,"}else{_61="."}}_61=new RegExp(_61);var _63={"=":"%1=='%2'","!=":"%1!='%2'","~=":/(^| )%1( 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b="e%2=d.documentElement;if(Traversal.contains(e%1,e%2)){";return format(b,_74++,_74)}," (\\*|[\\w-]+)#([\\w-]+)":function(a,b,c){_75=false;var d="var e%2=_80(d,'%4');if(e%2&&";if(b!="*")d+="e%2.nodeName=='%3'[c]()&&";d+="Traversal.contains(e%1,e%2)){";if(_76)d+=format("i%1=n%1.length;",_76);return format(d,_74++,_74,b,c)}," (\\*|[\\w-]+)":function(a,b){_77++;_75=b=="*";var c=_66;c+=(_75&&_31)?"all":"getElementsByTagName('%3')";c+=";for(i%2=0;(e%2=n%2[i%2]);i%2++){";return format(c,_74++,_76=_74,b)},">(\\*|[\\w-]+)":function(a,b){var c=_30&&_76;_75=b=="*";var d=_66;d+=c?"children":"childNodes";if(!_75&&c)d+=".tags('%3')";d+=";for(i%2=0;(e%2=n%2[i%2]);i%2++){";if(_75){d+="if(e%2.nodeType==1){";_75=_31}else{if(!c)d+="if(e%2.nodeName=='%3'[c]()){"}return format(d,_74++,_76=_74,b)},"\\+(\\*|[\\w-]+)":function(a,b){var c="";if(_75&&_30)c+="if(e%1.nodeName!='!'){";_75=false;c+="e%1=Traversal.getNextElementSibling(e%1);if(e%1";if(b!="*")c+="&&e%1.nodeName=='%2'[c]()";c+="){";return format(c,_74,b)},"~(\\*|[\\w-]+)":function(a,b){var c="";if(_75&&_30)c+="if(e%1.nodeName!='!'){";_75=false;_77=2;c+="while(e%1=e%1.nextSibling){if(e%1.b2_adjacent==_72)break;if(";if(b=="*"){c+="e%1.nodeType==1";if(_31)c+="&&e%1.nodeName!='!'"}else c+="e%1.nodeName=='%2'[c]()";c+="){e%1.b2_adjacent=_72;";return format(c,_74,b)},"#([\\w-]+)":function(a,b){_75=false;var c="if(e%1.id=='%2'){";if(_76)c+=format("i%1=n%1.length;",_76);return format(c,_74,b)},"\\.([\\w-]+)":function(a,b){_75=false;_73.push(new RegExp("(^|\\s)"+rescape(b)+"(\\s|$)"));return format("if(e%1.className&&reg[%2].test(e%1.className)){",_74,_73.length-1)},":not\\((\\*|[\\w-]+)?([^)]*)\\)":function(a,b,c){var d=(b&&b!="*")?format("if(e%1.nodeName=='%2'[c]()){",_74,b):"";d+=_79.exec(c);return"if(!"+d.slice(2,-1).replace(/\)\{if\(/g,"&&")+"){"},":nth(-last)?-child\\(([^)]+)\\)":function(a,b,c){_75=false;b=format("e%1.parentNode.b2_length",_74);var d="if(p%1!==e%1.parentNode)p%1=_81(e%1.parentNode);";d+="var i=e%1[p%1.b2_lookup];if(p%1.b2_lookup!='b2_index')i++;if(";return format(d,_74)+_57(a,c,"i",b,"!","&&","%","==")+"){"},":([\\w-]+)(\\(([^)]+)\\))?":function(a,b,c,d){return"if("+format(_64[b]||"throw",_74,d||"")+"){"},"\\[([\\w-]+)\\s*([^=]?=)?\\s*([^\\]]*)\\]":function(a,b,c,d){var e=_35[b]||b;if(c){var f="e%1.getAttribute('%2',2)";if(!_34.test(b)){f="e%1.%3||"+f}b=format("("+f+")",_74,b,e)}else{b=format("Element.getAttribute(e%1,'%2')",_74,b)}var g=_63[c||""];if(instanceOf(g,RegExp)){_73.push(new RegExp(format(g.source,rescape(_79.unescape(d)))));g="reg[%2].test(%1)";d=_73.length-1}return"if("+format(g,b,d)+"){"}});new function(_){var _80=_30?function(a,b){var c=a.all[b]||null;if(!c||c.id==b)return c;for(var i=0;i<c.length;i++){if(c[i].id==b)return c[i]}return null}:function(a,b){return a.getElementById(b)};var _72=1;function _81(a){if(a.rows){a.b2_length=a.rows.length;a.b2_lookup="rowIndex"}else if(a.cells){a.b2_length=a.cells.length;a.b2_lookup="cellIndex"}else if(a.b2_indexed!=_72){var b=0;var c=a.firstChild;while(c){if(c.nodeType==1&&c.nodeName!="!"){c.b2_index=++b}c=c.nextSibling}a.b2_length=b;a.b2_lookup="b2_index"}a.b2_indexed=_72;return a};Selector.parse=function(a){if(!_78[a]){_73=[];var b="";var c=_79.escape(a).split(",");for(var i=0;i<c.length;i++){_75=_74=_76=0;_77=c.length>1?2:0;var d=_79.exec(c[i])||"throw;";if(_75&&_30){d+=format("if(e%1.nodeName!='!'){",_74)}var e=(_77>1)?_68:"";d+=format(e+_69,_74);d+=Array(match(d,/\{/g).length+1).join("}");b+=d}eval(format(_70,_73)+_79.unescape(b)+"return s?null:r}");_78[a]=_71}return _78[a]}};Document.implement(DocumentSelector);Element.implement(ElementSelector);var HTMLDocument=Document.extend(null,{"@(document.activeElement===undefined)":{bind:function(b){b.activeElement=null;EventTarget.addEventListener(b,"focus",function(a){b.activeElement=a.target},false);return this.base(b)}}});var HTMLElement=Element.extend({addClass:function(a,b){if(!this.hasClass(a,b)){a.className+=(a.className?" ":"")+b}},hasClass:function(a,b){var c=new RegExp("(^|\\s)"+b+"(\\s|$)");return c.test(a.className)},removeClass:function(a,b){var c=new RegExp("(^|\\s)"+b+"(\\s|$)","g");a.className=trim(a.className.replace(c,"$2"))},toggleClass:function(a,b){if(this.hasClass(a,b)){this.removeClass(a,b)}else{this.addClass(a,b)}}},{bindings:{},tags:"*",bind:function(a){CSSStyleDeclaration.bind(a.style);return this.base(a)},extend:function(){var b=base(this,arguments);var c=(b.tags||"").toUpperCase().split(",");forEach(c,function(a){HTMLElement.bindings[a]=b});return b},"@!(element.ownerDocument)":{bind:function(a){a.ownerDocument=Traversal.getOwnerDocument(a);return this.base(a)}}});HTMLElement.extend(null,{tags:"APPLET,EMBED",bind:I});eval(this.exports)};