/*  Prototype JavaScript framework, version 1.5.0
 *  (c) 2005-2007 Sam Stephenson
 *
 *  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',
  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, length = arguments.length; i < 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;
      }
    }
  }
}
String.interpret = function(value){
  return value == null ? '' : String(value);
}

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

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

  sub: function(pattern, replacement, count) {
    replacement = this.gsub.prepareReplacement(replacement);
    count = 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.length > 1 ?
      $A(div.childNodes).inject('',function(memo,node){ return memo+node.nodeValue }) :
      div.childNodes[0].nodeValue) : '';
  },

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

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

        if (hash[name] !== undefined) {
          if (hash[name].constructor != Array)
            hash[name] = [hash[name]];
          if (value) hash[name].push(value);
        }
        else hash[name] = value;
      }
      return hash;
    });
  },

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

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

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

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

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

    return camelized;
  },

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

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

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

  inspect: function(useDoubleQuotes) {
    var escapedString = this.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 + String.interpret(object[match[3]]);
    });
  }
}

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.map(iterator);
  },

  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 || Prototype.K)(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 === undefined ? null : fillWith;
    return this.eachSlice(number, function(slice) {
      while(slice.length < number) slice.push(fillWith);
      return slice;
    });
  },

  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.map(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.map(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.map();
  },

  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));
    });
  },

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

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

Object.extend(Enumerable, {
  map:     Enumerable.collect,
  find:    Enumerable.detect,
  select:  Enumerable.findAll,
  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 != 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);
  },

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

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

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

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

if(window.opera){
  Array.prototype.concat = function(){
    var array = [];
    for(var i = 0, length = this.length; i < length; i++) array.push(this[i]);
    for(var i = 0, length = arguments.length; i < length; i++) {
      if(arguments[i].constructor == Array) {
        for(var j = 0, arrayLength = arguments[i].length; j < arrayLength; j++)
          array.push(arguments[i][j]);
      } else {
        array.push(arguments[i]);
      }
    }
    return array;
  }
}
var Hash = function(obj) {
  Object.extend(this, obj || {});
};

Object.extend(Hash, {
  toQueryString: function(obj) {
    var parts = [];

	  this.prototype._each.call(obj, function(pair) {
      if (!pair.key) return;

      if (pair.value && pair.value.constructor == Array) {
        var values = pair.value.compact();
        if (values.length < 2) pair.value = values.reduce();
        else {
        	key = encodeURIComponent(pair.key);
          values.each(function(value) {
            value = value != undefined ? encodeURIComponent(value) : '';
            parts.push(key + '=' + encodeURIComponent(value));
          });
          return;
        }
      }
      if (pair.value == undefined) pair[1] = '';
      parts.push(pair.map(encodeURIComponent).join('='));
	  });

    return parts.join('&');
  }
});

Object.extend(Hash.prototype, Enumerable);
Object.extend(Hash.prototype, {
  _each: function(iterator) {
    for (var key in this) {
      var value = this[key];
      if (value && value == Hash.prototype[key]) 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;
    });
  },

  remove: function() {
    var result;
    for(var i = 0, length = arguments.length; i < length; i++) {
      var value = this[arguments[i]];
      if (value !== undefined){
        if (result === undefined) result = value;
        else {
          if (result.constructor != Array) result = [result];
          result.push(value)
        }
      }
      delete this[arguments[i]];
    }
    return result;
  },

  toQueryString: function() {
    return Hash.toQueryString(this);
  },

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

function $H(object) {
  if (object && object.constructor == Hash) return object;
  return new Hash(object);
};
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();
    if (typeof this.options.parameters == 'string')
      this.options.parameters = this.options.parameters.toQueryParams();
  }
}

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

Ajax.Request.prototype = Object.extend(new Ajax.Base(), {
  _complete: false,

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

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

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

    params = Hash.toQueryString(params);
    if (params && /Konqueror|Safari|KHTML/.test(navigator.userAgent)) params += '&_='

    // when GET, append parameters to URL
    if (this.method == 'get' && params)
      this.url += (this.url.indexOf('?') > -1 ? '&' : '?') + params;

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

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

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

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

      var body = this.method == 'post' ? (this.options.postBody || params) : 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 && !((readyState == 4) && this._complete))
      this.respondToReadyState(this.transport.readyState);
  },

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

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

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

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

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

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

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

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

    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') {
      // 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, length = query.snapshotLength; i < length; 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 || _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);

    Object.extend(methods, Element.Methods.Simulated);

    for (var property in methods) {
      var value = methods[property];
      if (typeof value == 'function' && !(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);
    html = typeof html == 'undefined' ? '' : html.toString();
    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) {
    return $A($(element).getElementsByTagName('*'));
  },

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

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

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

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

  match: function(element, selector) {
    if (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) {
    return document.getElementsByClassName(className, element);
  },

  readAttribute: function(element, name) {
    element = $(element);
    if (document.all && !window.opera) {
      var t = Element._attributeTranslations;
      if (t.values[name]) return t.values[name](element, name);
      if (t.names[name])  name = t.names[name];
      var attribute = element.attributes[name];
      if(attribute) return attribute.nodeValue;
    }
    return element.getAttribute(name);
  },

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

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

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

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

  toggleClassName: function(element, className) {
    if (!(element = $(element))) return;
    Element.classNames(element)[element.hasClassName(className) ? 'remove' : 'add'](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 $(element).innerHTML.match(/^\s*$/);
  },

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

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

  getStyle: function(element, style) {
    element = $(element);
    if (['float','cssFloat'].include(style))
      style = (typeof element.style.styleFloat != 'undefined' ? 'styleFloat' : 'cssFloat');
    style = style.camelize();
    var value = element.style[style];
    if (!value) {
      if (document.defaultView && document.defaultView.getComputedStyle) {
        var css = document.defaultView.getComputedStyle(element, null);
        value = css ? css[style] : null;
      } else if (element.currentStyle) {
        value = element.currentStyle[style];
      }
    }

    if((value == 'auto') && ['width','height'].include(style) && (element.getStyle('display') != 'none'))
      value = element['offset'+style.capitalize()] + 'px';

    if (window.opera && ['left', 'top', 'right', 'bottom'].include(style))
      if (Element.getStyle(element, 'position') == 'static') value = 'auto';
    if(style == 'opacity') {
      if(value) return parseFloat(value);
      if(value = (element.getStyle('filter') || '').match(/alpha\(opacity=(.*)\)/))
        if(value[1]) return parseFloat(value[1]) / 100;
      return 1.0;
    }
    return value == 'auto' ? null : value;
  },

  setStyle: function(element, style) {
    element = $(element);
    for (var name in style) {
      var value = style[name];
      if(name == 'opacity') {
        if (value == 1) {
          value = (/Gecko/.test(navigator.userAgent) &&
            !/Konqueror|Safari|KHTML/.test(navigator.userAgent)) ? 0.999999 : 1.0;
          if(/MSIE/.test(navigator.userAgent) && !window.opera)
            element.style.filter = element.getStyle('filter').replace(/alpha\([^\)]*\)/gi,'');
        } else if(value == '') {
          if(/MSIE/.test(navigator.userAgent) && !window.opera)
            element.style.filter = element.getStyle('filter').replace(/alpha\([^\)]*\)/gi,'');
        } else {
          if(value < 0.00001) value = 0;
          if(/MSIE/.test(navigator.userAgent) && !window.opera)
            element.style.filter = element.getStyle('filter').replace(/alpha\([^\)]*\)/gi,'') +
              'alpha(opacity='+value*100+')';
        }
      } else if(['float','cssFloat'].include(name)) name = (typeof element.style.styleFloat != 'undefined') ? 'styleFloat' : 'cssFloat';
      element.style[name.camelize()] = value;
    }
    return element;
  },

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

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

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

Object.extend(Element.Methods, {childOf: Element.Methods.descendantOf});

Element._attributeTranslations = {};

Element._attributeTranslations.names = {
  colspan:   "colSpan",
  rowspan:   "rowSpan",
  valign:    "vAlign",
  datetime:  "dateTime",
  accesskey: "accessKey",
  tabindex:  "tabIndex",
  enctype:   "encType",
  maxlength: "maxLength",
  readonly:  "readOnly",
  longdesc:  "longDesc"
};

Element._attributeTranslations.values = {
  _getAttr: function(element, attribute) {
    return element.getAttribute(attribute, 2);
  },

  _flag: function(element, attribute) {
    return $(element).hasAttribute(attribute) ? attribute : null;
  },

  style: function(element) {
    return element.style.cssText.toLowerCase();
  },

  title: function(element) {
    var node = element.getAttributeNode('title');
    return node.specified ? node.nodeValue : null;
  }
};

Object.extend(Element._attributeTranslations.values, {
  href: Element._attributeTranslations.values._getAttr,
  src:  Element._attributeTranslations.values._getAttr,
  disabled: Element._attributeTranslations.values._flag,
  checked:  Element._attributeTranslations.values._flag,
  readonly: Element._attributeTranslations.values._flag,
  multiple: Element._attributeTranslations.values._flag
});

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

// IE is missing .innerHTML support for TABLE-related elements
if (document.all && !window.opera){
  Element.Methods.update = function(element, html) {
    element = $(element);
    html = typeof html == 'undefined' ? '' : html.toString();
    var tagName = element.tagName.toUpperCase();
    if (['THEAD','TBODY','TR','TD'].include(tagName)) {
      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.toUpperCase();
        if (['TBODY', 'TR'].include(tagName)) {
          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.readAttribute("id") == ' + clause.inspect());
    if (clause = params.tagName)
      conditions.push('element.tagName.toUpperCase() == ' + clause.inspect());
    if ((clause = params.classNames).length > 0)
      for (var i = 0, length = clause.length; i < length; i++)
        conditions.push('element.hasClassName(' + clause[i].inspect() + ')');
    if (clause = params.attributes) {
      clause.each(function(attribute) {
        var value = 'element.readAttribute(' + 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('element.hasAttribute(' + attribute.name.inspect() + ')'); break;
          default:        throw 'Unknown operator ' + attribute.operator + ' in selector';
        }
      });
    }

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

  compileMatcher: function() {
    this.match = new Function('element', 'if (!element.tagName) return false; \
      element = $(element); \
      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)).map(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.match(/[^\s"]+(?:"[^"]*"[^\s"]+)*/g).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, getHash) {
    var data = elements.inject({}, function(result, element) {
      if (!element.disabled && element.name) {
        var key = element.name, value = $(element).getValue();
        if (value != undefined) {
          if (result[key]) {
            if (result[key].constructor != Array) result[key] = [result[key]];
            result[key].push(value);
          }
          else result[key] = value;
        }
      }
      return result;
    });

    return getHash ? data : Hash.toQueryString(data);
  }
};

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

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

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

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

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

    return matchingInputs;
  },

  disable: function(form) {
    form = $(form);
    form.getElements().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 && element.name) {
      var value = element.getValue();
      if (value != undefined) {
        var pair = {};
        pair[element.name] = value;
        return Hash.toQueryString(pair);
      }
    }
    return '';
  },

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

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

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

  activate: function(element) {
    element = $(element);
    element.focus();
    if (element.select && ( element.tagName.toLowerCase() != 'input' ||
      !['button', 'reset', 'submit'].include(element.type) ) )
      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;
var $F = Form.Element.getValue;

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

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);
    }
  },

  inputSelector: function(element) {
    return element.checked ? element.value : null;
  },

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

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

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

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

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

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

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

Abstract.TimedObserver = 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();
    var changed = ('string' == typeof this.lastValue && 'string' == typeof value
      ? this.lastValue != value : String(this.lastValue) != String(value));
    if (changed) {
      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();


//(c) 2006 Valerio Proietti (http://mad4milk.net). MIT-style license.
//moo.fx.js - depends on prototype.js OR prototype.lite.js
//version 2.0

var Fx = fx = {};

Fx.Base = function(){};
Fx.Base.prototype = {

	setOptions: function(options){
		this.options = Object.extend({
			onStart: function(){},
			onComplete: function(){},
			transition: Fx.Transitions.sineInOut,
			duration: 500,
			unit: 'px',
			wait: true,
			fps: 50
		}, options || {});
	},

	step: function(){
		var time = new Date().getTime();
		if (time < this.time + this.options.duration){
			this.cTime = time - this.time;
			this.setNow();
		} else {
			setTimeout(this.options.onComplete.bind(this, this.element), 10);
			this.clearTimer();
			this.now = this.to;
		}
		this.increase();
	},

	setNow: function(){
		this.now = this.compute(this.from, this.to);
	},

	compute: function(from, to){
		var change = to - from;
		return this.options.transition(this.cTime, from, change, this.options.duration);
	},

	clearTimer: function(){
		clearInterval(this.timer);
		this.timer = null;
		return this;
	},

	_start: function(from, to){
		if (!this.options.wait) this.clearTimer();
		if (this.timer) return;
		setTimeout(this.options.onStart.bind(this, this.element), 10);
		this.from = from;
		this.to = to;
		this.time = new Date().getTime();
		this.timer = setInterval(this.step.bind(this), Math.round(1000/this.options.fps));
		return this;
	},

	custom: function(from, to){
		return this._start(from, to);
	},

	set: function(to){
		this.now = to;
		this.increase();
		return this;
	},

	hide: function(){
		return this.set(0);
	},

	setStyle: function(e, p, v){
		if (p == 'opacity'){
			if (v == 0 && e.style.visibility != "hidden") e.style.visibility = "hidden";
			else if (e.style.visibility != "visible") e.style.visibility = "visible";
			if (window.ActiveXObject) e.style.filter = "alpha(opacity=" + v*100 + ")";
			e.style.opacity = v;
		} else e.style[p] = v+this.options.unit;
	}

};

Fx.Style = Class.create();
Fx.Style.prototype = Object.extend(new Fx.Base(), {

	initialize: function(el, property, options){
		this.element = $(el);
		this.setOptions(options);
		this.property = property.camelize();
	},

	increase: function(){
		this.setStyle(this.element, this.property, this.now);
	}

});

Fx.Styles = Class.create();
Fx.Styles.prototype = Object.extend(new Fx.Base(), {

	initialize: function(el, options){
		this.element = $(el);
		this.setOptions(options);
		this.now = {};
	},

	setNow: function(){
		for (p in this.from) this.now[p] = this.compute(this.from[p], this.to[p]);
	},

	custom: function(obj){
		if (this.timer && this.options.wait) return;
		var from = {};
		var to = {};
		for (p in obj){
			from[p] = obj[p][0];
			to[p] = obj[p][1];
		}
		return this._start(from, to);
	},

	increase: function(){
		for (var p in this.now) this.setStyle(this.element, p, this.now[p]);
	}

});

//Transitions (c) 2003 Robert Penner (http://www.robertpenner.com/easing/), BSD License.

Fx.Transitions = {
	linear: function(t, b, c, d) { return c*t/d + b; },
	sineInOut: function(t, b, c, d) { return -c/2 * (Math.cos(Math.PI*t/d) - 1) + b; }
};

// start moo.fx.pack.js

//by Valerio Proietti (http://mad4milk.net). MIT-style license.
//moo.fx.pack.js - depends on prototype.js or prototype.lite.js + moo.fx.js
//version 2.0

Fx.Scroll = Class.create();
Fx.Scroll.prototype = Object.extend(new Fx.Base(), {

	initialize: function(el, options) {
		this.element = $(el);
		this.setOptions(options);
		this.element.style.overflow = 'hidden';
	},
	
	down: function(){
		return this.custom(this.element.scrollTop, this.element.scrollHeight-this.element.offsetHeight);
	},
	
	up: function(){
		return this.custom(this.element.scrollTop, 0);
	},

	increase: function(){
		this.element.scrollTop = this.now;
	}

});

//fx.Color, originally by Tom Jensen (http://neuemusic.com) MIT-style LICENSE.

Fx.Color = Class.create();
Fx.Color.prototype = Object.extend(new Fx.Base(), {
	
	initialize: function(el, property, options){
		this.element = $(el);
		this.setOptions(options);
		this.property = property.camelize();
		this.now = [];
	},

	custom: function(from, to){
		return this._start(from.hexToRgb(true), to.hexToRgb(true));
	},

	setNow: function(){
		[0,1,2].each(function(i){
			this.now[i] = Math.round(this.compute(this.from[i], this.to[i]));
		}.bind(this));
	},

	increase: function(){
		this.element.style[this.property] = "rgb("+this.now[0]+","+this.now[1]+","+this.now[2]+")";
	}

});

Object.extend(String.prototype, {

	rgbToHex: function(array){
		var rgb = this.match(new RegExp('([\\d]{1,3})', 'g'));
		if (rgb[3] == 0) return 'transparent';
		var hex = [];
		for (var i = 0; i < 3; i++){
			var bit = (rgb[i]-0).toString(16);
			hex.push(bit.length == 1 ? '0'+bit : bit);
		}
		var hexText = '#'+hex.join('');
		if (array) return hex;
		else return hexText;
	},

	hexToRgb: function(array){
		var hex = this.match(new RegExp('^[#]{0,1}([\\w]{1,2})([\\w]{1,2})([\\w]{1,2})$'));
		var rgb = [];
		for (var i = 1; i < hex.length; i++){
			if (hex[i].length == 1) hex[i] += hex[i];
			rgb.push(parseInt(hex[i], 16));
		}
		var rgbText = 'rgb('+rgb.join(',')+')';
		if (array) return rgb;
		else return rgbText;
	}	

});

// moo.fx.utils.js

//by Valerio Proietti (http://mad4milk.net). MIT-style license.
//moo.fx.utils.js - depends on prototype.js OR prototype.lite.js + moo.fx.js
//version 2.0

Fx.Height = Class.create();
Fx.Height.prototype = Object.extend(new Fx.Base(), {

	initialize: function(el, options){
		this.element = $(el);
		this.setOptions(options);
		this.element.style.overflow = 'hidden';
	},

	toggle: function(){
		if (this.element.offsetHeight > 0) return this.custom(this.element.offsetHeight, 0);
		else return this.custom(0, this.element.scrollHeight);
	},

	show: function(){
		return this.set(this.element.scrollHeight);
	},

	increase: function(){
		this.setStyle(this.element, 'height', this.now);
	}

});

Fx.Width = Class.create();
Fx.Width.prototype = Object.extend(new Fx.Base(), {

	initialize: function(el, options){
		this.element = $(el);
		this.setOptions(options);
		this.element.style.overflow = 'hidden';
		this.iniWidth = this.element.offsetWidth;
	},

	toggle: function(){
		if (this.element.offsetWidth > 0) return this.custom(this.element.offsetWidth, 0);
		else return this.custom(0, this.iniWidth);
	},

	show: function(){
		return this.set(this.iniWidth);
	},

	increase: function(){
		this.setStyle(this.element, 'width', this.now);
	}

});

Fx.Opacity = Class.create();
Fx.Opacity.prototype = Object.extend(new Fx.Base(), {

	initialize: function(el, options){
		this.element = $(el);
		this.setOptions(options);
		this.now = 1;
	},

	toggle: function(){
		if (this.now > 0) return this.custom(1, 0);
		else return this.custom(0, 1);
	},

	show: function(){
		return this.set(1);
	},
	
	increase: function(){
		this.setStyle(this.element, 'opacity', this.now);
	}

});

// accordion.js

//by Valerio Proietti (http://mad4milk.net). MIT-style license.
//accordion.js - depends on prototype.js or prototype.lite.js + moo.fx.js
//version 2.0

Fx.Accordion = Class.create();
Fx.Accordion.prototype = Object.extend(new Fx.Base(), {
	
	extendOptions: function(options){
		Object.extend(this.options, Object.extend({
			start: 'open-first',
			fixedHeight: false,
			fixedWidth: false,
			alwaysHide: false,
			wait: false,
			onActive: function(){},
			onBackground: function(){},
			height: true,
			opacity: true,
			width: false
		}, options || {}));
	},

	initialize: function(togglers, elements, options){
		this.now = {};
		this.elements = $A(elements);
		this.togglers = $A(togglers);
		this.setOptions(options);
		this.extendOptions(options);
		this.previousClick = 'nan';
		this.togglers.each(function(tog, i){
			if (tog.onclick) tog.prevClick = tog.onclick;
			else tog.prevClick = function(){};
			$(tog).onclick = function(){
				tog.prevClick();
				this.showThisHideOpen(i);
			}.bind(this);
		}.bind(this));
		this.h = {}; this.w = {}; this.o = {};
		this.elements.each(function(el, i){
			this.now[i+1] = {};
			el.style.height = '0';
			el.style.overflow = 'hidden';
		}.bind(this));
		switch(this.options.start){
			case 'first-open': this.elements[0].style.height = this.elements[0].scrollHeight+'px'; break;
			case 'open-first': this.showThisHideOpen(0); break;
		}
	},
	
	setNow: function(){
		for (var i in this.from){
			var iFrom = this.from[i];
			var iTo = this.to[i];
			var iNow = this.now[i] = {};
			for (var p in iFrom) iNow[p] = this.compute(iFrom[p], iTo[p]);
		}
	},

	custom: function(objObjs){
		if (this.timer && this.options.wait) return;
		var from = {};
		var to = {};
		for (var i in objObjs){
			var iProps = objObjs[i];
			var iFrom = from[i] = {};
			var iTo = to[i] = {};
			for (var prop in iProps){
				iFrom[prop] = iProps[prop][0];
				iTo[prop] = iProps[prop][1];
			}
		}
		return this._start(from, to);
	},

	hideThis: function(i){
		if (this.options.height) this.h = {'height': [this.elements[i].offsetHeight, 0]};
		if (this.options.width) this.w = {'width': [this.elements[i].offsetWidth, 0]};
		if (this.options.opacity) this.o = {'opacity': [this.now[i+1]['opacity'] || 1, 0]};
	},

	showThis: function(i){
		if (this.options.height) this.h = {'height': [this.elements[i].offsetHeight, this.options.fixedHeight || this.elements[i].scrollHeight]};
		if (this.options.width) this.w = {'width': [this.elements[i].offsetWidth, this.options.fixedWidth || this.elements[i].scrollWidth]};
		if (this.options.opacity) this.o = {'opacity': [this.now[i+1]['opacity'] || 0, 1]};
	},

	showThisHideOpen: function(iToShow){
		if (iToShow != this.previousClick || this.options.alwaysHide){
			this.previousClick = iToShow;
			var objObjs = {};
			var err = false;
			var madeInactive = false;
			this.elements.each(function(el, i){
				this.now[i] = this.now[i] || {};
				if (i != iToShow){
					this.hideThis(i);
				} else if (this.options.alwaysHide){
					if (el.offsetHeight == el.scrollHeight){
						this.hideThis(i);
						madeInactive = true;
					} else if (el.offsetHeight == 0){
						this.showThis(i);
					} else {
						err = true;
					}
				} else if (this.options.wait && this.timer){
					this.previousClick = 'nan';
					err = true;
				} else {
					this.showThis(i);
				}
				objObjs[i+1] = Object.extend(this.h, Object.extend(this.o, this.w));
			}.bind(this));
			if (err) return;
			if (!madeInactive) this.options.onActive.call(this, this.togglers[iToShow], iToShow);
			this.togglers.each(function(tog, i){
				if (i != iToShow || madeInactive) this.options.onBackground.call(this, tog, i);
			}.bind(this));
			return this.custom(objObjs);
		}
	},
	
	increase: function(){
		for (var i in this.now){
			var iNow = this.now[i];
			for (var p in iNow) this.setStyle(this.elements[parseInt(i)-1], p, iNow[p]);
		}
	}

});

// moo.fx.transitions.js

//moo.fx.transitions.js - depends on prototype.js or prototype.lite.js + moo.fx.js
//Author: Robert Penner, <http://www.robertpenner.com/easing/>, modified to be used with mootools.
//License: Easing Equations v1.5, (c) 2003 Robert Penner, all rights reserved. Open Source BSD License.

Fx.Transitions = {

	linear: function(t, b, c, d){
		return c*t/d + b;
	},

	quadIn: function(t, b, c, d){
		return c*(t/=d)*t + b;
	},

	quadOut: function(t, b, c, d){
		return -c *(t/=d)*(t-2) + b;
	},

	quadInOut: function(t, b, c, d){
		if ((t/=d/2) < 1) return c/2*t*t + b;
		return -c/2 * ((--t)*(t-2) - 1) + b;
	},

	cubicIn: function(t, b, c, d){
		return c*(t/=d)*t*t + b;
	},

	cubicOut: function(t, b, c, d){
		return c*((t=t/d-1)*t*t + 1) + b;
	},

	cubicInOut: function(t, b, c, d){
		if ((t/=d/2) < 1) return c/2*t*t*t + b;
		return c/2*((t-=2)*t*t + 2) + b;
	},

	quartIn: function(t, b, c, d){
		return c*(t/=d)*t*t*t + b;
	},

	quartOut: function(t, b, c, d){
		return -c * ((t=t/d-1)*t*t*t - 1) + b;
	},

	quartInOut: function(t, b, c, d){
		if ((t/=d/2) < 1) return c/2*t*t*t*t + b;
		return -c/2 * ((t-=2)*t*t*t - 2) + b;
	},

	quintIn: function(t, b, c, d){
		return c*(t/=d)*t*t*t*t + b;
	},

	quintOut: function(t, b, c, d){
		return c*((t=t/d-1)*t*t*t*t + 1) + b;
	},

	quintInOut: function(t, b, c, d){
		if ((t/=d/2) < 1) return c/2*t*t*t*t*t + b;
		return c/2*((t-=2)*t*t*t*t + 2) + b;
	},

	sineIn: function(t, b, c, d){
		return -c * Math.cos(t/d * (Math.PI/2)) + c + b;
	},

	sineOut: function(t, b, c, d){
		return c * Math.sin(t/d * (Math.PI/2)) + b;
	},

	sineInOut: function(t, b, c, d){
		return -c/2 * (Math.cos(Math.PI*t/d) - 1) + b;
	},

	expoIn: function(t, b, c, d){
		return (t==0) ? b : c * Math.pow(2, 10 * (t/d - 1)) + b;
	},

	expoOut: function(t, b, c, d){
		return (t==d) ? b+c : c * (-Math.pow(2, -10 * t/d) + 1) + b;
	},

	expoInOut: function(t, b, c, d){
		if (t==0) return b;
		if (t==d) return b+c;
		if ((t/=d/2) < 1) return c/2 * Math.pow(2, 10 * (t - 1)) + b;
		return c/2 * (-Math.pow(2, -10 * --t) + 2) + b;
	},

	circIn: function(t, b, c, d){
		return -c * (Math.sqrt(1 - (t/=d)*t) - 1) + b;
	},

	circOut: function(t, b, c, d){
		return c * Math.sqrt(1 - (t=t/d-1)*t) + b;
	},

	circInOut: function(t, b, c, d){
		if ((t/=d/2) < 1) return -c/2 * (Math.sqrt(1 - t*t) - 1) + b;
		return c/2 * (Math.sqrt(1 - (t-=2)*t) + 1) + b;
	},

	elasticIn: function(t, b, c, d, a, p){
		if (t==0) return b; if ((t/=d)==1) return b+c; if (!p) p=d*.3; if (!a) a = 1;
		if (a < Math.abs(c)){ a=c; var s=p/4; }
		else var s = p/(2*Math.PI) * Math.asin(c/a);
		return -(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
	},

	elasticOut: function(t, b, c, d, a, p){
		if (t==0) return b; if ((t/=d)==1) return b+c; if (!p) p=d*.3; if (!a) a = 1;
		if (a < Math.abs(c)){ a=c; var s=p/4; }
		else var s = p/(2*Math.PI) * Math.asin(c/a);
		return a*Math.pow(2,-10*t) * Math.sin( (t*d-s)*(2*Math.PI)/p ) + c + b;
	},

	elasticInOut: function(t, b, c, d, a, p){
		if (t==0) return b; if ((t/=d/2)==2) return b+c; if (!p) p=d*(.3*1.5); if (!a) a = 1;
		if (a < Math.abs(c)){ a=c; var s=p/4; }
		else var s = p/(2*Math.PI) * Math.asin(c/a);
		if (t < 1) return -.5*(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
		return a*Math.pow(2,-10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )*.5 + c + b;
	},

	backIn: function(t, b, c, d, s){
		if (!s) s = 1.70158;
		return c*(t/=d)*t*((s+1)*t - s) + b;
	},

	backOut: function(t, b, c, d, s){
		if (!s) s = 1.70158;
		return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;
	},

	backInOut: function(t, b, c, d, s){
		if (!s) s = 1.70158;
		if ((t/=d/2) < 1) return c/2*(t*t*(((s*=(1.525))+1)*t - s)) + b;
		return c/2*((t-=2)*t*(((s*=(1.525))+1)*t + s) + 2) + b;
	},

	bounceIn: function(t, b, c, d){
		return c - Fx.Transitions.bounceOut (d-t, 0, c, d) + b;
	},

	bounceOut: function(t, b, c, d){
		if ((t/=d) < (1/2.75)){
			return c*(7.5625*t*t) + b;
		} else if (t < (2/2.75)){
			return c*(7.5625*(t-=(1.5/2.75))*t + .75) + b;
		} else if (t < (2.5/2.75)){
			return c*(7.5625*(t-=(2.25/2.75))*t + .9375) + b;
		} else {
			return c*(7.5625*(t-=(2.625/2.75))*t + .984375) + b;
		}
	},

	bounceInOut: function(t, b, c, d){
		if (t < d/2) return Fx.Transitions.bounceIn(t*2, 0, c, d) * .5 + b;
		return Fx.Transitions.bounceOut(t*2-d, 0, c, d) * .5 + c*.5 + b;
	}

};


function getInnerHeight() {
	// gets the inner height of the window (cross-browser safe)
	win = window;
	var winHeight;
	if (win.innerHeight) {
		winHeight = win.innerHeight;
	}
	else if (win.document.documentElement && win.document.documentElement.clientHeight) {
		winHeight = win.document.documentElement.clientHeight;
	}
	else if (win.document.body) {
		winHeight = win.document.body.clientHeight;
	}
	return winHeight;
}



function getInnerWidth() {
	// gets the inner width of the window (cross-browser safe)
	win = window;
	var winWidth;
	if (win.innerWidth) {
		winWidth = win.innerWidth;
	}
	else if (win.document.documentElement && win.document.documentElement.clientWidth) {
		winWidth = win.document.documentElement.clientWidth;
	}
	else if (document.body) {
		winWidth = win.document.body.clientWidth;
	}
	return winWidth;
}

	
function getMousePos(e) {
	// mozilla
	if (document.layers||document.getElementById&&!document.all) {
		return (e.pageX + ',' + e.pageY);
	}
	// iexplore
	else if (document.all) {
		return (window.event.clientX + ',' + window.event.clientY);
	}
}

function getScrollWidth()
{
   var w = window.pageXOffset ||
           document.body.scrollLeft ||
           document.documentElement.scrollLeft;
           
   return w ? w : 0;
}

function getScrollHeight()
{
   var h = window.pageYOffset ||
           document.body.scrollTop ||
           document.documentElement.scrollTop;
           
   return h ? h : 0;
}

function getScrollTop()	{
	var x,y;
	if (self.pageYOffset) // all except Explorer
	{
		x = self.pageXOffset;
		y = self.pageYOffset;
	}
	else if (document.documentElement && document.documentElement.scrollTop)
		// Explorer 6 Strict
	{
		x = document.documentElement.scrollLeft;
		y = document.documentElement.scrollTop;
	}
	else if (document.body) // all other Explorers
	{
		x = document.body.scrollLeft;
		y = document.body.scrollTop;
	}
	
	return y;
}


function setCookie(cookieName, cookieValue, nHours) {
	var today = new Date();
	var expire = new Date();
	if (nHours==null || nHours==0) nHours=1;
	expire.setTime(today.getTime() + 3600000*24*nHours);
	document.cookie = cookieName+"="+escape(cookieValue) + ";expires="+expire.toGMTString() + ';path=/';
}

function getCookie(cookieName)	{
	var cookieData = new Object();
	var cookieChunks = document.cookie.split('; ');
	for(var i = 0; i < cookieChunks.length; i++)	{
		cookieData[cookieChunks[i].split('=')[0]] = unescape(cookieChunks[i].split('=')[1]);
	}
	if(cookieName == null)	{
		// return all cookies
		return cookieData;
	}
	else	{
		return cookieData[cookieName];
	}
}


Event.observe(window, 'load', function()	{
	var hider = document.createElement('div');
	hider.id = 'hider';
	hider.className = 'hider';
	hider.styleClass = 'hider';
	document.body.appendChild(hider);
	
	hider.style.width = '100%';
	hider.style.height = '100%';
	hider.style.background = 'black';
	hider.style.position = 'absolute';
	hider.style.top = '0px';
	hider.style.left = '0px';
	hider.style.display = 'none';
	hider.style.opacity = '0';
	hider.style.filter = 'alpha(opacity=0)';
	hider.style.zIndex = 1;

	
	$('hider').show_fx = new Fx.Styles($('hider'), {duration: 250, transition: Fx.Transitions.linear});	
	$('hider').hide_fx = new Fx.Styles($('hider'), {duration: 250, transition: Fx.Transitions.linear, onComplete: 
		function()	{
			$('hider').style.display = 'none';
		}
	});	
}, false);

function show_hider()	{
	// window.scrollTo(0,0);
	$('hider').style.display = 'block';
	$('hider').style.width = getInnerWidth() * 1.2 + 'px';
	$('hider').style.height = getScrollTop() + getInnerHeight() * 1.2 + 'px';
	$('hider').style.top = -1 * getInnerHeight() / 12 + 'px';
	$('hider').style.left = -1 * getInnerWidth() / 12 + getScrollWidth() + 'px';
	$('hider').show_fx.custom({
		'opacity' : [0, 0.5]
	});	
}

function hide_hider()	{
	$('hider').hide_fx.custom({
		'opacity' : [0.5, 0]
	});	
}

function show_popup(popup_box)	{
	// fade the background to black
	show_hider();

	// style the popup_box
	popup_box.className = 'popup_form';
	popup_box.styleClass = 'popup_form';
	
	// make sure the popup_box shows up in front
	document.body.insertBefore(popup_box, document.body.firstChild);

	// benchmarks
	popup_box.style.height = '';
	popup_box.style.width = '';
	var target_height = popup_box.offsetHeight;
	var target_width = popup_box.offsetWidth;
	if(	target_height > getInnerHeight() ||
		target_width > getInnerWidth()
	)	{
		target_height = getInnerHeight() * .9;
		target_width = getInnerWidth() * .9;
	}
	popup_box.style.height = 1;
	popup_box.style.width = 1;
	
	popup_box.shown_width = target_width;
	popup_box.shown_height = target_height;

	// go nuts
	popup_box.show_fx = new Fx.Styles(popup_box, {duration: 750, transition: Fx.Transitions.backOut});
	popup_box.show_fx.custom({
		'width' : [1, popup_box.shown_width],
		'height' : [1, popup_box.shown_height],
		'left' : [getScrollWidth() + getInnerWidth(window) / 2, getScrollWidth() + getInnerWidth(window) / 2 - target_width / 2],
		// 'top' : [getScrollHeight() + getInnerHeight(window) / 2, getScrollHeight() + getInnerHeight(window) / 2 - target_height / 2]
		'top' : [0, getScrollHeight() + 25]
	});	
}

function hide_popup(popup_box)	{
	// create a remover function
	popup_box.remove = function()	{
		this.element.parentNode.removeChild(this.element);
	};
	
	// benchmarks
	var source_height = popup_box.offsetHeight;
	var source_width = popup_box.offsetWidth;
	
	// in case it's still opening
	popup_box.show_fx.clearTimer();
	
	// go nuts
	popup_box.hide_fx = new Fx.Styles(popup_box, {duration: 250, transition: Fx.Transitions.backIn, onComplete: popup_box.remove});
	popup_box.hide_fx.custom({
		'width' : [source_width, 1],
		'height' : [source_height, 1],
		'left' : [getScrollWidth() + getInnerWidth(window) / 2 - source_width / 2, getScrollWidth() + getInnerWidth(window) / 2],
		// 'top' : [getScrollHeight() + getInnerHeight(window) / 2 - source_height / 2, getScrollHeight() + getInnerHeight(window) / 2]
		'top' : [getScrollHeight() + 25, 0]
	});	
	
	// unfade the background from black
	hide_hider();
}


var clean_text_nodes = function(node)	{
	if(!node)
		return 0;
		
	for(var i = 0; i < node.childNodes.length; i++)	{
		if(	node.childNodes[i].nodeType == 3 
			&& node.childNodes[i].nodeValue.replace(/\s/g, '') == ''
		)	{
			node.removeChild(node.childNodes[i]);
			i--;	
		}
		else if	(node.childNodes[i].hasChildNodes())	{
			clean_text_nodes(node.childNodes[i]);
		}
	}
}


function make_fisheye(options)	{
	// make sure options are sufficient
	if(	options == null ||
		options.base_width == null ||
		options.magnification == null ||
		options.link_list == null ||
		options.image_list == null ||
		options.label_list == null ||
		options.link_list.length != options.image_list.length ||
		options.label_list.length != options.link_list.length
	)	{
		alert('Incomplete parameter list.');
		return 0;
	}
	
	var fisheye_element = document.createElement('div');
	fisheye_element.innerHTML = '';
	for(var i = 0; i < options.image_list.length; i++)	{
		fisheye_element.innerHTML += '<img src="' + options.image_list[i] + '" onclick="window.location = \'' + options.link_list[i] + '\';" alt="' + options.label_list[i] + '"/>';
	}
	fisheye_element.style.position = 'absolute';
	fisheye_element.style.left = '0px';
	fisheye_element.style.top = options.base_top + 'px';
	fisheye_element.style.display = 'none';
	fisheye_element.slide_fx = new Fx.Styles(fisheye_element, {duration: 500, transition: Fx.Transitions.backOut});	
	fisheye_element.options = options;
	
	/*fisheye_element.onmousemove = function(evt)	{
		var mouse_offset = getMousePos(evt).split(',')[1] - this.options.base_top;
		var icons = this.getElementsByTagName('img');
		icon_number = parseInt(mouse_offset / this.options.base_width);
		// icons[icon_number].style.width = parseInt(this.options.base_width * this.options.magnification - mouse_offset) + 'px';
		// icons[icon_number].style.height = parseInt(this.options.base_width * this.options.magnification - mouse_offset) + 'px';
		
		for(var i = 0; i < icons.length; i++)	{
			icon_center = this.options.base_width * (i + 0.5);
			mouse_distance = Math.abs(mouse_offset - icon_center);
			magnification = Math.max(this.options.magnification / (mouse_distance + 1), 1);
			icons[i].style.width = magnification * this.options.base_width + 'px';
			icons[i].style.height = magnification * this.options.base_width + 'px';
		}
		$('title').innerHTML = icon_center + ',' + mouse_offset + ',' + icon_number + ',' + (options.base_width * options.magnification - mouse_offset);			
	}*/
	
	document.body.appendChild(fisheye_element);
	
	// clean out useless stuff
	fisheye_element.cleanWhitespace();	
	
	// make sure we got a div full of imgs
	var fisheye_images = fisheye_element.getElementsByTagName('img');
	var tooltip;
	for(var i = 0; i < fisheye_images.length; i++)	{
		fisheye_images[i].style.display = 'block';	
		fisheye_images[i].style.border = 'none';	
		fisheye_images[i].style.cursor = 'pointer';	
		fisheye_images[i].style.height = options.base_width + 'px';	
		fisheye_images[i].style.width = options.base_width + 'px';	
		fisheye_images[i].style.position = 'relative';	
		fisheye_images[i].style.top = 0;
		fisheye_images[i].ordinal = i;		
		// fisheye_images[i].style.opacity = .75;
		// fisheye_images[i].style.filter = 'alpha(opacity=75)';		
		// tooltip stuff
		tooltip = document.createElement('div');
		tooltip.innerHTML = '<a href="' + options.link_list[i] + '">' + options.label_list[i] + '</a>';
		tooltip.style.fontVariant = 'small-caps';
		// tooltip.style.position = 'absolute';
		tooltip.style.padding = 0;
		tooltip.style.fontWeight = 'bold';
		tooltip.style.margin = 0;
		tooltip.style.fontSize = '11px';
		tooltip.style.textAlign = 'left';
		tooltip.style.filter = 'alpha(opacity=65)';
		// tooltip.style.opacity = .65;
		fisheye_element.insertBefore(tooltip, fisheye_images[i].nextSibling);
		
		// the following code only will execute in internet explorer 6 and below -----
		/*@cc_on
		// if(@_jscript_version <= 5.6)	{
			fisheye_images[i].style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + fisheye_images[i].src + "', sizingMethod='scale')";
			fisheye_images[i].src = 'images/blank.gif';
		// }
		@*/
		// end ie-only code ----------------------------------------------------------		
	}
	
	for(var i = 0; i < fisheye_images.length; i++)	{
		fisheye_images[i].style.width = options.base_width + 'px';
		fisheye_images[i].zoom_fx = new Fx.Styles(fisheye_images[i], {duration: 500, transition: Fx.Transitions.backOut});	
		fisheye_images[i].onmouseover = fisheye_mouseover;
		fisheye_images[i].onmouseout = fisheye_mouseout;
		if(options.link_list[i].indexOf('javascript:') == -1)
			Event.observe(fisheye_images[i], 'click', fisheye_onclick, false);
	}
	
	fisheye_element.style.display = 'block';
}				

function fisheye_onclick()	{
	// disabled temp
	return 0;
	
	if(this && this.parentNode)	{
		var fisheye_images = this.parentNode.getElementsByTagName('img');
		for(var i = 0; i < fisheye_images.length; i++)	{
			if(	fisheye_images[i] != this)	{
				fisheye_images[i].zoom_fx.clearTimer();
				fisheye_images[i].zoom_fx.custom({
					'opacity' : [1, 0]
				});
				fisheye_images[i].nextSibling.style.visibility = 'hidden';
			}
		}
	}
}

function fisheye_mouseover()	{
	options = this.parentNode.options;
	
	/*this.parentNode.slide_fx.clearTimer();
	this.parentNode.slide_fx.custom({
		'right' : [options.right_offset, options.right_offset - options.base_width * options.magnification * 1.5]
	});*/
	
	this.parentNode.slide_fx.clearTimer();
	this.parentNode.slide_fx.custom({
		'top' : [this.parentNode.offsetTop, options.base_top - options.base_width * options.magnification / 4 - Math.min(1, this.ordinal) * options.base_width * options.magnification / 2 * 3/5 - (options.base_width * options.magnification - options.base_width) / 4]
	});
	
	this.zoom_fx.clearTimer();
	this.zoom_fx.custom({
		'width' : [this.offsetWidth, options.base_width * options.magnification],
		'height' : [this.offsetWidth, options.base_width * options.magnification]
	});
	
	if(this.nextSibling != null && this.nextSibling.nextSibling != null)	{
		this.nextSibling.nextSibling.zoom_fx.clearTimer();
		this.nextSibling.nextSibling.zoom_fx.custom({
			'width' : [this.nextSibling.nextSibling.offsetWidth, options.base_width * options.magnification * 3/5],
			'height' : [this.nextSibling.nextSibling.offsetWidth, options.base_width * options.magnification * 3/5]
		});
	}
	if(this.previousSibling != null && this.previousSibling.previousSibling != null)	{
		this.previousSibling.previousSibling.zoom_fx.clearTimer();
		this.previousSibling.previousSibling.zoom_fx.custom({
			'width' : [this.previousSibling.previousSibling.offsetWidth, options.base_width * options.magnification * 3/5],
			'height' : [this.previousSibling.previousSibling.offsetWidth, options.base_width * options.magnification * 3/5]
		});
	}
	/*for(var i = 0; i < this.parentNode.childNodes.length; i++)	{
		if(	this.parentNode.childNodes[i] == this)	{
			target_offset_adjustment = options.base_width * options.magnification * 1 / 8;
		}
		else	{
			target_offset_adjustment = (
					(this.nextSibling != null && this.parentNode.childNodes[i] == this.nextSibling) || 
					(this.previousSibling != null && this.parentNode.childNodes[i] == this.previousSibling)
				) ? -1 * options.base_width * options.magnification * 1 / 4 : options.base_width - options.magnification * options.base_width;
		}
		offset = parseInt(this.parentNode.childNodes[i].style.right.substring(0, this.parentNode.childNodes[i].style.right.length - 2));
		this.parentNode.childNodes[i].vertical_fx.clearTimer();
		this.parentNode.childNodes[i].vertical_fx.custom({
			'right' : [offset, target_offset_adjustment]
		})
	}*/
	
	// if(this.tooltip != null)
	//	this.parentNode.insertBefore(this.tooltip, this.nextSibling.nextSibling);
}
		
function fisheye_mouseout()	{
	options = this.parentNode.options;

	/*this.parentNode.slide_fx.clearTimer();
	this.parentNode.slide_fx.custom({
		'right' : [options.right_offset - options.base_width * options.magnification * 1.5, options.right_offset]
	});*/
	
	this.parentNode.slide_fx.clearTimer();
	this.parentNode.slide_fx.custom({
		'top' : [this.parentNode.offsetTop, this.parentNode.options.base_top]
	});
	
	
	// if(this.tooltip != null)
	//	this.parentNode.removeChild(this.nextSibling.nextSibling);
	
	this.zoom_fx.clearTimer();
	this.zoom_fx.custom({
		'width' : [this.offsetWidth, options.base_width],
		'height' : [this.offsetWidth, options.base_width]
	});
	if(this.nextSibling != null && this.nextSibling.nextSibling != null)	{
		this.nextSibling.nextSibling.zoom_fx.clearTimer();
		this.nextSibling.nextSibling.zoom_fx.custom({
			'width' : [this.nextSibling.nextSibling.offsetWidth, options.base_width],
			'height' : [this.nextSibling.nextSibling.offsetWidth, options.base_width]
		});
	}
	if(this.previousSibling != null && this.previousSibling.previousSibling != null)	{
		this.previousSibling.previousSibling.zoom_fx.clearTimer();
		this.previousSibling.previousSibling.zoom_fx.custom({
			'width' : [this.previousSibling.previousSibling.offsetWidth, options.base_width],
			'height' : [this.previousSibling.previousSibling.offsetWidth, options.base_width]
		});
	}
	
	/*for(var i = 0; i < this.parentNode.childNodes.length; i++)	{
		this.parentNode.childNodes[i].vertical_fx.clearTimer();
		offset = parseInt(this.parentNode.childNodes[i].style.right.substring(0, this.parentNode.childNodes[i].style.right.length - 2));
		this.parentNode.childNodes[i].vertical_fx.custom({
			'right' : [offset, 0]
		})
	}*/
}




var Calendar = Class.create();

Calendar.prototype = {
	initialize : function(dom_element_id, data_dom_element_id)	{
		this.dom_element_id = dom_element_id;
		this.event_container = data_dom_element_id;
		$(dom_element_id).calendar = this;
		var today = new Date();
		this.month = today.getMonth() + 1;
		this.year = today.getFullYear();
	},
	
	event_container : null,
	dom_element_id : null,
	data_dom_element_id : null,
	month : null,
	year : null,
	month_list : ['January','February','March','April','May','June','July','August','September','October','November','December'],
	this_months_events : null,
	date_to_show : null,
	
	build_string : function(m, y, cM, cH, cDW, cD, brdr, events)	{
		var dim=[31,0,31,30,31,30,31,31,30,31,30,31];
		
		var oD = new Date(y, m-1, 1); //DD replaced line to fix date bug when current day is 31st
		oD.od=oD.getDay()+1; //DD replaced line to fix date bug when current day is 31st
		
		var todaydate=new Date(); //DD added
		var scanfortoday=(y==todaydate.getFullYear() && m==todaydate.getMonth()+1)? todaydate.getDate() : 0; //DD added
		
		dim[1]=(((oD.getFullYear()%100!=0)&&(oD.getFullYear()%4==0))||(oD.getFullYear()%400==0))?29:28;
		var t='';
		t+='<div class="'+cM+'"><table class="'+cM+'" cols="7" cellpadding="0" border="'+brdr+'" cellspacing="0"><tr align="center">';
		t+='<td align="center" class="'+cH+'"><a href="javascript:void(0);" onclick="' + "$('" + this.dom_element_id + "').calendar.draw_another_month(-1);" + '">&lt;&lt;</a></td>';
		t+='<td colspan="5" align="center" class="'+cH+'">'+this.month_list[m-1]+' '+y+'</td>';
		t+='<td align="center" class="'+cH+'"><a href="javascript:void(0);" onclick="' + "$('" + this.dom_element_id + "').calendar.draw_another_month(1);" + '">&gt;&gt;</a></td>';
		t+='</tr><tr align="center">';
		for(s=0;s<7;s++)t+='<td class="'+cDW+'">'+"SMTWTFS".substr(s,1)+'</td>';
		t+='</tr><tr align="center">';
		var side = 'left';
		for(i=1;i<=42;i++)	{
			var x=((i-oD.od>=0)&&(i-oD.od<dim[m-1]))? i-oD.od+1 : '&nbsp;';
			var busy=false;
			for(j = 0; j < events.length; j++)
				if(events[j].event_day == x && events[j].event_month == this.month && events[j].event_year == this.year)
					busy=true;
			t+='<td class="'+cD+'">';
			t+='<div class="day_border' + (x == '&nbsp;' ? '"' : ' bordered_day"') + '">';
			t+='<table width=100%>';
			t+='<tr>';
			t+='<td width=33%>';
			t+='<font color=#f3f3f3>&nbsp;</font>';
			t+='</td>';
			t+='<td width=33%></td>';
			t+='<td align=right width=33%';
			if(busy) t+=' class="busy clickable" onclick="' + '$(\'' + this.dom_element_id + '\').calendar.show_days_events(' + x + ');' + '">';
			else t+='>';
			t+='</td>';
			t+='</tr>';
			t+= '<tr>';
			t+='<td> </td>';
			t+='<td class="clickable" onclick="add_new_event(' + parseInt(x) + ',' + (this.month - 1) + ',' + this.year + ');">';
			if(x == scanfortoday) t+='<span class="today">' + x + '</span>';
			else t+=x;
			t+='</td>';
			t+='<td> </td>';
			t+='</tr>';
			t+='<tr>';
			t+='<td> </td>';
			t+='<td> </td>';
			t+='<td>';
			t+='<font color=#f3f3f3>&nbsp;</font>';
			t+='</td>';
			t+='</tr>';
			t+='</table>';
			t+='</div>';
			t+='</td>';
				
			if(((i)%7==0)&&(i<36))
				t+='</tr><tr align="center">';
		}
		t+='</tr></table></div>';
	
		return t;
	},
	
	show_days_events : function(day)	{
		var calendar_data = this.this_months_events;
		var event_markup = '';
		
		for(var i = 0; i < calendar_data.length; i++)	{
			if(calendar_data[i].event_day == day)	{
				event_markup += '<div class="event_summary">' +
								'<a target="_blank" href="' + calendar_data[i].event_url + '">' +
								calendar_data[i].event_title +
								'</a>' +
								'<br/>' + 								
								'<span>' + calendar_data[i].event_date_label + '</span>' +
								'<span>, </span>' + 
								'<span>' + calendar_data[i].event_time + '</span>' +
								'<br/>' +
								'<span>' + calendar_data[i].event_location + '</span>' + 
								'<br/><br/>' +
								'<span>' + calendar_data[i].event_summary + '</span>' + 
								'<div class="event_author">' + 
								'<a href="view_profile.php?uid=' + calendar_data[i].user_id + '">--' +
								calendar_data[i].user_name + 
								'</a>' +
								'</div>' +
								'</div>'; 
			}
		}
		
		$(this.event_container).innerHTML = event_markup;	
	}	,
	
	draw : function(date_to_show)	{
		this.request_data();
		if(date_to_show)
			this.date_to_show = date_to_show;
	},
	
	request_data : function()	{
		$(this.dom_element_id).innerHTML = '<img src="images/ajax-loader.gif"/>';
		var myAjax = new Ajax.Request(
		'services/json.this_months_events.php?month=' + this.month + '&dom_element_id=' + this.dom_element_id, 
		{
			method: 'get', 
			parameters: '', 
			onComplete: this.draw_with_data
		});		
	},
	
	draw_with_data : function(ajax)	{
		var json_data = eval('(' + ajax.responseText + ')');
		var dom_element_id = json_data.dom_element_id;
		var events_data = json_data.data;
		$(dom_element_id).calendar.build_from_ajax(events_data);
		if($(dom_element_id).calendar.date_to_show)	{
			$(dom_element_id).calendar.show_days_events($(dom_element_id).calendar.date_to_show);
			$(dom_element_id).calendar.date_to_show = null;	
		}
	},
	
	build_from_ajax : function(events_data)	{
		this.this_months_events = events_data;
		$(this.dom_element_id).innerHTML = this.build_string(this.month, this.year, "base", "month", "daysofweek", "days", 0, events_data);
	},
	
	insert_markup : function()	{
	},
	
	draw_another_month : function(month_offset)	{
		this.month += month_offset;
		if(this.month == 0)	{
			this.month = 12;
			this.year--;
		}
		if(this.month == 13) {
			this.month = 1;
			this.year++;	
		}
				
		this.draw();
	}
}


function activate_news_expanders(parent_element)	{
	if(parent_element == null)
		var news = $('news');
	else
		var news = parent_element;
	var news_story;
	var expand_link;
	
	clean_text_nodes(news);
	
	for(var i = 0; i < news.childNodes.length; i++)	{
		if(	news.childNodes[i].tagName == 'DIV' &&
			(news.childNodes[i].styleClass == 'article_summary' || news.childNodes[i].className == 'article_summary')
		)	{
			news_story = news.childNodes[i];	
			
			expand_link = document.createElement('a');
			expand_link.styleClass = 'expand_link';
			expand_link.className = 'expand_link';
			expand_link.innerHTML = 'expand';
			expand_link.href = 'javascript:void(0);';
			expand_link.show_fx = new Fx.Styles(news_story.childNodes[1], {duration: 500, transition: Fx.Transitions.circInOut});
			expand_link.hide_summary = function()	{
				this.element.nextSibling.style.display = 'none';	
			}
			expand_link.hide_fx = new Fx.Styles(news_story.childNodes[1], {duration: 500, transition: Fx.Transitions.circInOut, onComplete: expand_link.hide_summary});
			expand_link.target_height = news_story.childNodes[1].offsetHeight;
			
			expand_link.onclick = function()	{
				// show the one we clicked
				this.show_fx.clearTimer();
				this.style.display = 'none';
				this.show_fx.custom({
					'height' : [1, this.target_height],
					'opacity' : [0, 1],
					'padding' : [0, 5]
				});
				
				// hide the ones we didn't click				
				for(var i = 0; i < this.parentNode.parentNode.childNodes.length; i++)	{
					if(	this.parentNode.parentNode.childNodes[i].tagName == 'DIV' &&
						this.parentNode.parentNode.childNodes[i] != this.parentNode &&
						(this.parentNode.parentNode.childNodes[i].styleClass == 'article_summary' || this.parentNode.parentNode.childNodes[i].className == 'article_summary')
					)	{
						this.parentNode.parentNode.childNodes[i].childNodes[1].show_fx.clearTimer();
						this.parentNode.parentNode.childNodes[i].childNodes[1].style.display = 'inline';
						source_height = this.parentNode.parentNode.childNodes[i].childNodes[2].offsetHeight;
						this.parentNode.parentNode.childNodes[i].childNodes[1].show_fx.custom({
							'height' : [source_height, 1],
							'opacity' : [1, 0],
							'padding' : [0, 0]
						})
					}
				}
				
				// take the focus off the link
				this.blur();
			}
			
			news_story.insertBefore(expand_link, news_story.childNodes[1]);
		}
	}
	
	// activate the first news link
	for(var i = 0; i < news.childNodes.length; i++)	{
		if(	news.childNodes[i].tagName == 'DIV' &&
			(news.childNodes[i].styleClass == 'article_summary' || news.childNodes[i].className == 'article_summary')
		)	{
			news.childNodes[i].childNodes[1].onclick();
			break;
		}
	}		
}

function show_login_form()	{
	var login_form = document.createElement('div');
	
	login_form.innerHTML = '<h1>Login</h1>' +
							'<form>' +
							'<span>Username</span>' +
							'<input name="user_name" type="text"/><br/>' +
							'<span>Password</span>' +
							'<input name="password" type="password"/><br/>' +
							'<input name="action" type="hidden" value="login" style="display: none"/>' +
							'<div style="text-align: right"><img id="login_form_loader" style="visibility: hidden" src="images/ajax-loader.gif"/></div>' +							
							'<span>' +
							'<input id="login_input_button" type="button" value="login">' +
							'<input type="button" value="cancel">' +
							'</span>' +
							'<div>' +
							'<span>Don\'t have an account?</span>' +
							'<a href="register.php"> Register!</a>' +
							'</div>' +
							'</form>';

	var inputs = login_form.getElementsByTagName('input');
	for(var i = 0; i < inputs.length; i++)	{
		var input_element = inputs[i];
		input_element.onkeydown = function(evt)	{
			var key = window.event ? window.event.keyCode : evt.keyCode;
			
			if(key == 13)
				$('login_input_button').click();
		}	
	}
	
	login_form.lastChild.lastChild.previousSibling.firstChild.nextSibling.onclick = function()	{
		hide_popup(this.parentNode.parentNode.parentNode);
	};
	login_form.lastChild.lastChild.previousSibling.firstChild.onclick = function()	{
		if(this.parentNode.parentNode.getElementsByTagName('input')[0].value.strip() == '' || this.parentNode.parentNode.getElementsByTagName('input')[1].value.strip() == '')	{
			alert('Please enter your username and password.');
			this.parentNode.parentNode.getElementsByTagName('input')[0].focus();
			return false;
		}
		else	{
			$('login_form_loader').style.visibility = 'visible';
			var myAjax = new Ajax.Request(
				'services/process_login.php', 
				{
					method: 'post', 
					parameters: Form.serialize(this.parentNode.parentNode), 
					onComplete: function(ajax)	{
						if(ajax.responseText == 'Empty profile.')	{
							var profile_form = document.createElement('div');
							
							profile_form.innerHTML = '<h1>Update Your Profile</h1>' +
													'<form>' +
													'<span>Your profile is empty! You can update your profile by clicking on ' +
													'the <b>My Profile</b> link in the left menu and selecting <b>Edit ' +
													' Profile</b> or by clicking <a href="manage_profile.php">here</a>.' +
													'</span>' +
													'<div style="text-align: right">' +
													'<input class="button" type="button" value="ok">' +
													'</div>' +
													'</form>';
							
							profile_form.lastChild.lastChild.firstChild.onclick = function()	{
								window.location.reload();	
							}
							
							show_popup(profile_form);
						}
						else
							window.location.reload();
					}
				});		
				
			hide_popup(this.parentNode.parentNode.parentNode);				
		}			
	};	
	
	show_popup(login_form);
	
	// login_form.getElementsByTagName('input')[0].focus();	
}

function activate_gallery(start_index)	{
	var gallery = $('gallery');
	
	clean_text_nodes(gallery);
	
	if(gallery.gallery_data == null)	{
		var gallery_data = eval('(' + gallery.firstChild.innerHTML + ')');
		gallery.gallery_data = gallery_data;
	}
	else	{
		var gallery_data = gallery.gallery_data;
		gallery.parentNode.removeChild(gallery.nextSibling);
		gallery.parentNode.removeChild(gallery.nextSibling);
	}
	
	if(gallery_data.length == 0)
		gallery.innerHTML = 'No uploaded images.';
	else	{
		while(gallery.hasChildNodes())
			gallery.removeChild(gallery.lastChild);
		
		if(start_index == null)
			start_index = 0;
			
		for(var i = start_index; i < gallery_data.length && i < start_index + 10; i++)	{
			img = document.createElement('img');
			img.path_to_thumb = gallery_data[i].image_path + 'thumbs/' + gallery_data[i].image_filename;
			img.path_to_image = gallery_data[i].image_path + gallery_data[i].image_filename;
			img.image_id = gallery_data[i].image_id;
			img.src = gallery_data[i].image_path + 'thumbs/' + gallery_data[i].image_filename;
			img.style.width = '40%';
			// img.style.height = '100px';
			img.style.margin  = '1%';
			img.path_to_show = gallery_data[i].image_path + gallery_data[i].image_filename;
			img.path_to_thumb = gallery_data[i].image_path + 'thumbs/' + gallery_data[i].image_filename;
			img.label = gallery_data[i].image_label;
			img.onload = adjust_image_height;
			img.onclick = show_image_path;
			img.ondblclick = set_article_summary_image;
			img.onmousedown = swap_image;
			gallery.appendChild(img);
		}
	}
	
	var gallery_controls = document.createElement('div');
	gallery_controls.style.margin = '0px';
	gallery_controls.style.padding = '0px';
	gallery_controls.innerHTML = '';
	if(start_index > 0)
		gallery_controls.innerHTML += '<a style="float: left" href="javascript:activate_gallery(' + (start_index - 10) + ');">previous 10</a>';
	if(gallery_data.length - 1 > start_index + 10)
		gallery_controls.innerHTML += '<a style="float: right" href="javascript:activate_gallery(' + (start_index + 10) + ');">next 10 (of ' + gallery_data.length + ' total)</a>';
	
	var br = document.createElement('br');
	
	gallery.parentNode.insertBefore(br, gallery.nextSibling)
	gallery.parentNode.insertBefore(gallery_controls, gallery.nextSibling)
	
	gallery.scrollTop = '0px';
	
}

function swap_image()	{
	img = this;
	if(img.src.indexOf(img.path_to_thumb) != -1)
		img.src = img.path_to_show;
	else
		img.src = img.path_to_thumb;
}

function adjust_image_height()	{
	return 0;
	
	this.style.height = '';
	this.height = '';
	this.style.height = this.style.width;
}

function activate_spotlights()	{
	var spotlights_container = $('spotlights');
	var spotlights_content = $('spotlight_contents');
	clean_text_nodes($('spotlights'));
	var spotlight_tab;
	
	for(var i = 0; i < spotlights_content.childNodes.length; i += 2)	{

		spotlight_header = spotlights_content.childNodes[i];
		spotlight_header.style.cursor = 'pointer';
		spotlight_header.slide_fx = new Fx.Styles(spotlight_header.nextSibling, {duration: 750, transition: Fx.Transitions.circInOut});
		
		spotlight_header.color_fx = new Fx.Color(spotlight_header, 'color', {duration: 1500});
		spotlight_header.background_fx = new Fx.Color(spotlight_header, 'backgroundColor', {duration: 750});
		
		spotlight_header.target_height = spotlight_header.nextSibling.offsetHeight;
		spotlight_header.onclick = show_spotlight;
		spotlight_header.nextSibling.style.overflow = 'hidden';
	}
	
	spotlights_content.childNodes[0].onclick();
}

function show_spotlight()	{
	if(this.active)
		return 0;
		
	// do all the other spotlights
	for(var i = 0; i < this.parentNode.childNodes.length; i += 2)	{
		this.parentNode.childNodes[i].slide_fx.clearTimer();
		this.parentNode.childNodes[i].slide_fx.custom({
			'height' : [this.parentNode.childNodes[i + 1].offsetHeight - 10, 0],
			'opacity' : [1, 0]
		});
		
		this.parentNode.childNodes[i].color_fx.clearTimer();
		if(this.parentNode.childNodes[i].active)
			this.parentNode.childNodes[i].color_fx.custom('990000', '7F7F7F');
		else
			this.parentNode.childNodes[i].style.color = '7F7F7F';
		this.parentNode.childNodes[i].active = false;
	}
	
	// do this spotlight
	this.slide_fx.clearTimer();
	this.slide_fx.custom({
		'height' : [this.nextSibling.offsetHeight, this.target_height],
		'opacity' : [0, 1]
	});
	this.color_fx.clearTimer();
	this.color_fx.custom('7F7F7F', '990000');
	this.active = true;
	
	// for manage section
	if($('spotlights_select_id') != null)	{
		$('spotlights_select_id').value = this.nextSibling.id;
		show_spotlight_data();
	}
}

function answer_question(answer_container, question_id)	{
	clean_text_nodes(answer_container.parentNode.parentNode);
	var previous_answers = answer_container.parentNode.previousSibling;
	
	answer_form = document.createElement('div');
	
	answer_form.innerHTML = '<h1>Answer</h1>' +
							'<form enctype="multipart/form-data" method="post" action="services/process_answer.php">' +
							'<span>Name</span>' +
							'<input name="answerer" type="text"/><br/>' +
							'<span>Answer</span>' +
							'<textarea name="answer" rows=5></textarea>' +
							'<input name="action" type="hidden" value="answer" style="display: none"/>' +
							'<input name="question_id" type="hidden" value="' + 
							question_id + 
							'" style="display: none"/>' +
							'<span>' +
							'<input type="button" value="answer">' +
							'<input type="button" value="cancel">' +
							'</span>' +
							'</form>';
							
	
	answer_form.lastChild.lastChild.firstChild.onclick = function()	{
		var answerer = this.parentNode.parentNode.getElementsByTagName('input')[0];
		var answer = this.parentNode.parentNode.getElementsByTagName('textarea')[0];
		
		if(answerer.value.strip() == '')	{
			answerer.focus();
			alert('Please enter your name.');
			return 0;
		}
		if(answer.value.strip() == '')	{
			answer.focus();
			alert('Please enter an answer.');
			return 0;
		}
		
		this.parentNode.parentNode.submit();
	};
	
	answer_form.lastChild.lastChild.lastChild.onclick = function()	{
		hide_popup(this.parentNode.parentNode.parentNode);
	};

	show_popup(answer_form);	
}

function populate_articles(start_index)	{
	var article_picker = $('article_picker');
	if(article_picker == null)
		return 0;
	
	if(start_index == null)
		start_index = 0;
		
	// get rid of the loading gif
	if(article_picker.hasChildNodes())
		article_picker.removeChild(article_picker.firstChild);

	// load the json data
	if(article_picker.article_data == null)	{
		var article_json = $('article_data').innerHTML;
		var article_data = eval('(' + article_json + ')');
		article_picker.article_data = article_data;
	}
	else	{
		var article_data = article_picker.article_data;
		article_picker.parentNode.removeChild(article_picker.nextSibling);
		article_picker.parentNode.removeChild(article_picker.nextSibling);
	}
	
	if(article_data.length == 0)	{
		article_picker.innerHTML = '<div style="text-align: center">There aren\'t any articles.</div>';
	}
	
	// create the table for the picker
	var article_table = document.createElement('table');
	
	for(var i = start_index; i < article_data.length && i < start_index + 20; i++)	{
		row = article_table.insertRow(article_table.rows.length)
		cell = row.insertCell(row.cells.length);
		cell.innerHTML = (i + 1) + '.';
		cell.width = '5px';
		cell = row.insertCell(row.cells.length);
		cell.innerHTML = '<input style="width: 25px; border: none" name="selected_article" onclick="set_selected_article(this.value);" value="' + article_data[i].article_id + '" type="radio"/>';
		cell.width = '5px';
		cell = row.insertCell(row.cells.length);
		cell.innerHTML = '<span>' + article_data[i].article_title + '</span>'
		cell = row.insertCell(row.cells.length);
		cell.innerHTML = article_data[i].article_submit_date + '</span>'
		cell = row.insertCell(row.cells.length);
		cell.innerHTML = '<span class="article_author">' + article_data[i].user_name + '</span>'
	}
	
	article_picker.appendChild(article_table);
	
	var article_picker_controls = document.createElement('div');
	article_picker_controls.style.margin = '0px';
	article_picker_controls.style.padding = '0px';
	article_picker_controls.innerHTML = '';
	if(start_index > 0)
		article_picker_controls.innerHTML += '<a style="float: left" href="javascript:populate_articles(' + (start_index - 20) + ');">previous 20 articles</a>';
	if(article_data.length - 1 > start_index + 20)
		article_picker_controls.innerHTML += '<a style="float: right" href="javascript:populate_articles(' + (start_index + 20) + ');">next 20 articles (of ' + article_data.length + ' total)</a>';
	
	var br = document.createElement('br');
	
	article_picker.parentNode.insertBefore(br, article_picker.nextSibling)
	article_picker.parentNode.insertBefore(article_picker_controls, article_picker.nextSibling)
	
	article_picker.scrollTop = '0px';
}

function activate_article_expanders()	{
	var articles = $('articles');
	var article;
	var expand_link;
	clean_text_nodes(articles);
	
	for(var i = 0; i < articles.childNodes.length; i++)	{
		if(	articles.childNodes[i].tagName == 'DIV' &&
			(articles.childNodes[i].styleClass == 'article_summary' || articles.childNodes[i].className == 'article_summary')
		)	{
			article = articles.childNodes[i];
			article.style.overflow = 'hidden';
			
			article_header = article.childNodes[0];
			
			article_header.show_fx = new Fx.Styles(article.childNodes[1], {duration: 500, transition: Fx.Transitions.circInOut});
			article_header.target_height = article_header.nextSibling.offsetHeight;
			
			article_header.onmouseover = activate_article_expanders_show_article;
			
			// article.insertBefore(expand_link, article.childNodes[1]);
		}
	}
	
	// activate the first news link
	for(var i = 0; i < articles.childNodes.length; i++)	{
		if(	articles.childNodes[i].tagName == 'DIV' &&
			(articles.childNodes[i].styleClass == 'article_summary' || articles.childNodes[i].className == 'article_summary')
		)	{
			articles.childNodes[i].childNodes[0].onmouseover();
			break;
		}
	}		
}

function activate_article_expanders_show_article()	{
	if(this.active)
		return 0;

	// show the one we clicked			
	this.show_fx.clearTimer();
	this.show_fx.custom({
		'height' : [1, this.target_height],
		'opacity' : [0, 1],
		'padding' : [0, 5]
	});
	this.active = true;
	
	// hide the ones we didn't click				
	for(var i = 0; i < this.parentNode.parentNode.childNodes.length; i++)	{
		if(	this.parentNode.parentNode.childNodes[i].tagName == 'DIV' &&
			this.parentNode.parentNode.childNodes[i] != this.parentNode &&
			(this.parentNode.parentNode.childNodes[i].styleClass == 'article_summary' || this.parentNode.parentNode.childNodes[i].className == 'article_summary') &&
			this.parentNode.parentNode.childNodes[i].childNodes[1].offsetHeight != 0
		)	{
			this.parentNode.parentNode.childNodes[i].childNodes[0].active = false;
			this.parentNode.parentNode.childNodes[i].childNodes[0].show_fx.clearTimer();
			this.parentNode.parentNode.childNodes[i].childNodes[0].show_fx.custom({
				'height' : [this.parentNode.parentNode.childNodes[i].childNodes[1].offsetHeight, 1],
				'opacity' : [1, 0],
				'padding' : [0, 0]
			})
		}
	}
}

function show_previous_question_answers(question_id, element)	{
	if($('previous_questions').call_in_progress)	{
		alert('Previous answers for a question are loading.');
		return 0;	
	}
	
	var myAjax = new Ajax.Request(
	'services/html.previous_question_answers.php', 
	{
		method: 'get', 
		parameters: 'question_id=' + question_id, 
		onComplete: process_previous_answers
	});		
	
	$('previous_questions').call_in_progress = true;
	$('previous_questions').element_to_update = element.parentNode;
	
	element.parentNode.innerHTML = '<img src="images/ajax-loader.gif"/>';
}

function process_previous_answers(ajax)	{
	$('previous_questions').element_to_update.innerHTML = ajax.responseText;
	$('previous_questions').element_to_update.style.textAlign = '';
	$('previous_questions').call_in_progress = false;
}

function activate_feed_dump_viewer()	{
	if($('feed_dumps') == null)
		return 0;
		
	clean_text_nodes($('feed_dumps'));
	
	var feed_dumps = $('feed_dumps').childNodes;
	
	for(var i = 0; i < feed_dumps.length - 3; i += 4)	{
		// feed_dumps[i].nextSibling.show_fx = new Fx.Styles(feed_dumps[i].nextSibling, {duration: 500, transition: Fx.Transitions.backOut});		
		// feed_dumps[i].nextSibling.hide_fx = new Fx.Styles(feed_dumps[i].nextSibling, {duration: 500, transition: Fx.Transitions.backIn, onComplete: feed_dumps[i].nextSibling.hide});
		
		var feed_url = feed_dumps[i + 1].innerHTML;
		var feed_id = feed_dumps[i].id;
		
		var myAjax = new Ajax.Request(
		'services/json.rss_reader.php', 
		{
			method: 'get', 
			parameters: 'feed_url=' + feed_url + '&feed_id=' + feed_id,
			onComplete: process_feed_items
		});		
	}	
}

function process_feed_items(ajax)	{
	var feed_data = eval('(' + ajax.responseText + ')');
	$(feed_data.feed_id).nextSibling.nextSibling.innerHTML = feed_data.feed_items_markup;
	$(feed_data.feed_id).nextSibling.nextSibling.style.padding = '0px';
	$(feed_data.feed_id).nextSibling.nextSibling.style.margin = '0px';
	$(feed_data.feed_id).style.display = 'none';
	$(feed_data.feed_id).innerHTML = feed_data.feed_title;
	activate_news_expanders($(feed_data.feed_id).nextSibling.nextSibling);
}