/*  Prototype JavaScript framework, version 1.4.0_rc2
 *  (c) 2005 Sam Stephenson <sam@conio.net>
 *
 *  THIS FILE IS AUTOMATICALLY GENERATED. When sending patches, please diff
 *  against the source tree, available from the Prototype darcs repository.
 *
 *  Prototype is freely distributable under the terms of an MIT-style license.
 *
 *  For details, see the Prototype web site: http://prototype.conio.net/
 *
/*--------------------------------------------------------------------------*/

console = '';
lang = {};

var Prototype = {
  Version: '1.4.0_rc2',

  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 (property in source) {
    destination[property] = source[property];
  }
  return destination;
}

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;
  }
}

Function.prototype.bind = function(object) {
  var __method = this;
  return function() {
    return __method.apply(object, arguments);
  }
}

Function.prototype.bindAsEventListener = function(object, args) {
  var __method = this;
  var __args = args;
  return function(event) {
    return __method.call(object, event || window.event, args);
  }
}

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

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

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

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

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

    return returnValue;
  }
}

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

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

    this.registerCallback();
  },

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

  onTimerEvent: function() {
    if (!this.currentlyExecuting) {
      try {
        this.currentlyExecuting = true;
        this.callback();
      } finally {
        this.currentlyExecuting = false;
      }
    }
  }
}

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

function $() {
  var elements = new Array();

  for (var i = 0; i < arguments.length; i++) {
    var element = arguments[i];
    if (typeof element == 'string')
      element = document.getElementById(element);

    if (arguments.length == 1)
      return element;

    elements.push(element);
  }

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

  escapeHTML: function() {
    var div = document.createElement('div');
    var text = document.createTextNode(this);
    div.appendChild(text);
    return div.innerHTML;
  },

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

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

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

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

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

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

    return camelizedString;
  },

  inspect: function() {
    return "'" + this.replace('\\', '\\\\').replace("'", '\\\'') + "'";
  }
});

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

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;
    }
  },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  toArray: function() {
    return this.collect(Prototype.K);
  },

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

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

  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.toArray) {
    return iterable.toArray();
  } else {
    var results = [];
    for (var i = 0; i < iterable.length; i++)
      results.push(iterable[i]);
    return results;
  }
}

Object.extend(Array.prototype, Enumerable);

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

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

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

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

  flatten: function() {
    return this.inject([], function(array, value) {
      return array.concat(value.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; i < this.length; i++)
      if (this[i] == object) return i;
    return false;
  },

  reverse: function() {
    var result = [];
    for (var i = this.length; i > 0; i--)
      result.push(this[i-1]);
    return result;
  },

  inspect: function() {
    return '[' + this.map(Object.inspect).join(', ') + ']';
  }
});
var Hash = {
  _each: function(iterator) {
    for (key in this) {
      var value = this[key];
      if (typeof value == 'function') continue;

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

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

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

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

  toQueryString: function() {
    return this.map(function(pair) {
      return pair.map(encodeURIComponent).join('=');
    }).join('&');
  },

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

function $H(object) {
  var hash = Object.extend({}, object || {});
  Object.extend(hash, Enumerable);
  Object.extend(hash, Hash);
  return hash;
}
var Range = Class.create();
Object.extend(Range.prototype, Enumerable);
Object.extend(Range.prototype, {
  initialize: function(start, end, exclusive) {
    this.start = start;
    this.end = end;
    this.exclusive = exclusive;
  },

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

  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 Range(start, end, exclusive);
}

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

  activeRequestCount: 0
}

Ajax.Responders = {
  responders: [],

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

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

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

  dispatch: function(callback, request, transport, json) {
    this.each(function(responder) {
      if (responder[callback] && 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,
      parameters:   ''
    }
    Object.extend(this.options, options || {});
  },

  responseIsSuccess: function() {
    return this.transport.status == undefined
        || this.transport.status == 0
        || (this.transport.status >= 200 && this.transport.status < 300);
  },

  responseIsFailure: function() {
    return !this.responseIsSuccess();
  }
}

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

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

  request: function(url) {
    var parameters = this.options.parameters || '';
    if (parameters.length > 0) parameters += '&_=';

    try {
      this.url = url;
      if (this.options.method == 'get' && parameters.length > 0)
        this.url += (this.url.match(/\?/) ? '&' : '?') + parameters;
		
	  if (console) console.log('URL: '+this.url);

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

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

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

      this.setRequestHeaders();

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

    } catch (e) {
      (this.options.onException || Prototype.emptyFunction)(this, e);
      Ajax.Responders.dispatch('onException', this, e);
    }
  },

  setRequestHeaders: function() {
    var requestHeaders =
      ['X-Requested-With', 'XMLHttpRequest',
       'X-Prototype-Version', Prototype.Version];

    if (this.options.method == 'post') {
      requestHeaders.push('Content-type',
        'application/x-www-form-urlencoded');

      /* Force "Connection: close" for Mozilla browsers to work around
       * a bug where XMLHttpReqeuest sends an incorrect Content-length
       * header. See Mozilla Bugzilla #246651.
       */
      if (this.transport.overrideMimeType)
        requestHeaders.push('Connection', 'close');
    }

    if (this.options.requestHeaders)
      requestHeaders.push.apply(requestHeaders, this.options.requestHeaders);

    for (var i = 0; i < requestHeaders.length; i += 2)
      this.transport.setRequestHeader(requestHeaders[i], requestHeaders[i+1]);
	  
	if (console) console.log("REQUEST HEADERS: "+requestHeaders);
  },

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

  evalJSON: function() {
    try {
      var json = this.transport.getResponseHeader('X-JSON'), object;
      object = eval(json);
      return object;
    } catch (e) {
    }
  },

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

    if (event == 'Complete')
		  (this.options['on' + this.transport.status]
		   || this.options['on' + (this.responseIsSuccess() ? 'Success' : 'Failure')]
		   || Prototype.emptyFunction)(transport, json);
		  	
		(this.options['on' + event] || Prototype.emptyFunction)(transport, json);
		Ajax.Responders.dispatch('on' + event, this, transport, json);

    /* Avoid memory leak in MSIE: clean up the oncomplete event handler */
    if (event == 'Complete')
      this.transport.onreadystatechange = Prototype.emptyFunction;
	
  }
});

Ajax.Updater = Class.create();
Ajax.Updater.ScriptFragment = '(?:<script.*?>)((\n|.)*?)(?:<\/script>)';

Object.extend(Object.extend(Ajax.Updater.prototype, Ajax.Request.prototype), {
  initialize: function(container, url, options) {
    this.containers = {
      success: container.success ? $(container.success) : $(container),
      failure: 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, object) {
      this.updateContent();
      onComplete(transport, object);
    }).bind(this);

    this.request(url);
  },

  updateContent: function() {
    var receiver = this.responseIsSuccess() ?
      this.containers.success : this.containers.failure;

    var match    = new RegExp(Ajax.Updater.ScriptFragment, 'img');
    var response = this.transport.responseText.replace(match, '');
    var scripts  = this.transport.responseText.match(match);

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

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

    if (this.options.evalScripts && scripts) {
      match = new RegExp(Ajax.Updater.ScriptFragment, 'im');
      setTimeout((function() {
        for (var i = 0; i < scripts.length; i++)
          eval(scripts[i].match(match)[1]);
      }).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.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);
  }
});
document.getElementsByClassName = function(className, parentElement) {
  var children = ($(parentElement) || document.body).getElementsByTagName('*');
  return $A(children).inject([], function(elements, child) {
    if (child.className.match(new RegExp("(^|\\s)" + className + "(\\s|$)")))
      elements.push(child);
    return elements;
  });
}

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

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

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

  toggle: function() {
    for (var i = 0; i < arguments.length; i++) {
      var element = $(arguments[i]);
      Element[Element.visible(element) ? 'hide' : 'show'](element);
    }
  },

  hide: function() {
    for (var i = 0; i < arguments.length; i++) {
      var element = $(arguments[i]);
      element.style.display = 'none';
    }
  },

  show: function() {
    for (var i = 0; i < arguments.length; i++) {
      var element = $(arguments[i]);
      element.style.display = '';
    }
  },

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

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

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

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

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

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

  // removes whitespace-only text node children
  cleanWhitespace: function(element) {
    element = $(element);
    for (var i = 0; i < element.childNodes.length; i++) {
      var node = element.childNodes[i];
      if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
        Element.remove(node);
    }
  },

  empty: function(element) {
    return $(element).innerHTML.match(/^\s*$/);
  },

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

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

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

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

  getDimensions: function(element) {
    element = $(element);
    if (Element.getStyle(element, 'display') != 'none')
      return {width: element.offsetWidth, height: element.offsetHeight};

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

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

  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 = '';
    }
  },

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

  undoClipping: function(element) {
    element = $(element);
    if (element._overflow) return;
    element.style.overflow = element._overflow;
    element._overflow = undefined;
  }
});

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;

    if (this.adjacency && this.element.insertAdjacentHTML) {
      try {
        this.element.insertAdjacentHTML(this.adjacency, this.content);
      } catch (e) {
        if (this.element.tagName.toLowerCase() == 'tbody') {
          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)]);
    }
  },

  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().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(this.toArray().concat(classNameToAdd).join(' '));
  },

  remove: function(classNameToRemove) {
    if (!this.include(classNameToRemove)) return;
	var res = this.select(function(className) {
      return className != classNameToRemove;
    });
    this.set(res.join(' '));
  },

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

Object.extend(Element.ClassNames.prototype, Enumerable);
var Field = {
  clear: function() {
    for (var i = 0; i < arguments.length; i++)
      $(arguments[i]).value = '';
  },

  focus: function(element) {
    $(element).focus();
  },

  present: function() {
    for (var i = 0; i < arguments.length; i++)
      if ($(arguments[i]).value == '') return false;
    return true;
  },

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

  activate: function(element) {
    $(element).focus();
    $(element).select();
  }
}

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

var Form = {
  serialize: function(form) {
    var elements = Form.getElements($(form));
    var queryComponents = new Array();

    for (var i = 0; i < elements.length; i++) {
      var queryComponent = Form.Element.serialize(elements[i]);
      if (queryComponent)
        queryComponents.push(queryComponent);
    }

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

  getElements: function(form) {
    form = $(form);
    var elements = new Array();

    for (tagName in Form.Element.Serializers) {
      var tagElements = form.getElementsByTagName(tagName);
      for (var j = 0; j < tagElements.length; j++)
        elements.push(tagElements[j]);
    }
    return elements;
  },

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

    if (!typeName && !name)
      return inputs;

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

    return matchingInputs;
  },

  disable: function(form) {
    var elements = Form.getElements(form);
    for (var i = 0; i < elements.length; i++) {
      var element = elements[i];
      element.blur();
      element.disabled = 'true';
    }
  },

  enable: function(form) {
    var elements = Form.getElements(form);
    for (var i = 0; i < elements.length; i++) {
      var element = elements[i];
      element.disabled = '';
    }
  },

  focusFirstElement: function(form) {
    form = $(form);
    var elements = Form.getElements(form);
    for (var i = 0; i < elements.length; i++) {
      var element = elements[i];
      if (element.type != 'hidden' && !element.disabled) {
        Field.activate(element);
        break;
      }
    }
  },

  reset: function(form) {
    $(form).reset();
  }
}

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

    if (parameter)
      return encodeURIComponent(parameter[0]) + '=' +
        encodeURIComponent(parameter[1]);
  },

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

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

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

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

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

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

  selectOne: function(element) {
    var value = '', opt, index = element.selectedIndex;
    if (index >= 0) {
      opt = element.options[index];
      value = opt.value;
      if (!value && !('value' in opt))
        value = opt.text;
    }
    return [element.name, value];
  },

  selectMany: function(element) {
    var value = new Array();
    for (var i = 0; i < element.length; i++) {
      var opt = element.options[i];
      if (opt.selected) {
        var optValue = opt.value;
        if (!optValue && !('value' in opt))
          optValue = opt.text;
        value.push(optValue);
      }
    }
    return [element.name, value];
  }
}

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

var $F = Form.Element.getValue;

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

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

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

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

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

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

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

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

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

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

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

  registerFormCallbacks: function() {
    var elements = Form.getElements(this.element);
    for (var i = 0; i < elements.length; i++)
      this.registerCallback(elements[i]);
  },

  registerCallback: function(element) {
    if (element.type) {
      switch (element.type.toLowerCase()) {
        case 'checkbox':
        case 'radio':
          element.target = this;
          element.prev_onclick = element.onclick || Prototype.emptyFunction;
          element.onclick = function() {
            this.prev_onclick();
            this.target.onElementEvent();
          }
          break;
        case 'password':
        case 'text':
        case 'textarea':
        case 'select-one':
        case 'select-multiple':
          element.target = this;
          element.prev_onchange = element.onchange || Prototype.emptyFunction;
          element.onchange = function() {
            this.prev_onchange();
            this.target.onElementEvent();
          }
          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,

  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; i < Event.observers.length; i++) {
      Event.stopObserving.apply(this, Event.observers[i]);
      Event.observers[i][0] = null;
    }
    Event.observers = false;
  },

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

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

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

  stopObserving: function(element, name, observer, useCapture) {
    var 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) {
      element.detachEvent('on' + name, observer);
    }
  }
});

/* prevent memory leaks in IE */
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) {
        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;
  },

  clone: function(source, target) {
    source = $(source);
    target = $(target);
    target.style.position = 'absolute';
    var offsets = this.cumulativeOffset(source);
    target.style.top    = offsets[1] + 'px';
    target.style.left   = offsets[0] + 'px';
    target.style.width  = source.offsetWidth + 'px';
    target.style.height = source.offsetHeight + 'px';
  },

  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 {
      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];
  }
}



// Utility functions
page_init = {
	scripts: {},
	run: function() {
		for(var prop in this.scripts) {
			if (typeof(this.scripts[prop]) == 'function') {
				if (window.attachEvent)
					window.attachEvent("onload", this.scripts[prop]);
				else
					window.addEventListener("load", this.scripts[prop], false);
			}
		}
		
	}
};

// Browser detection
browser = {
	detect: function() {
		var sUserAgent = navigator.userAgent;
		var fAppVersion = parseFloat(navigator.appVersion);
		this.isOpera = sUserAgent.indexOf("Opera") > -1;
		this.isMinOpera4 = this.isMinOpera5 = this.isMinOpera6 = this.isMinOpera7 = this.isMinOpera7_5 = false;
		
		// Check for Opera browsers
		if (this.isOpera) {
			var fOperaVersion;
			if (navigator.appName == "Opera") {
				fOperaVersion = fAppVersion;	
			} else {
				var reOperaVersion = new RegExp("Opera (\\d+\\.\\d+)");
				reOperaVersion.test(sUserAgent);
				fOperaVersion = parseFloat(RegExp["$1"]);
			}
			
			this.isMinOpera4 = fOperaVersion >= 4;
			this.isMinOpera5 = fOperaVersion >= 5;
			this.isMinOpera6 = fOperaVersion >= 6;
			this.isMinOpera7 = fOperaVersion >= 7;
			this.isMinOpera7_5 = fOperaVersion >= 7.5;
		}
		
		// Check for Konquerer
		this.isKHTML = sUserAgent.indexOf("KHTML") > -1
					    || sUserAgent.indexOf("Konqueror") > -1
						|| sUserAgent.indexOf("AppleWebKit") > -1;
						
		this.isSafari = this.isMinSafari1 = this.isMinSafari1_2 = false;
		this.isKonq = this.isMinKonq2_2 = this.isMinKonq3 = this.isMinKonq3_1 = this.isMinKonq3_2 = false;
		
		if (this.isKHTML) {
			this.isSafari = sUserAgent.indexOf("AppleWebKit") > -1 || false;
			this.isKonq = sUserAgent.indexOf("Konqueror") > -1 || false;
			
			if (this.isSafari) {
				var reAppleWebKit = new RegExp("AppleWebKit\\/(\\d+(?:\\.\\d*)?)");
				reAppleWebKit.test(sUserAgent);
				var fAppleWebKitVersion = parseFloat(RegExp["$1"]);
				this.isMinSafari1 = fAppleWebKitVersion >= 85;
				this.isMinSafari1_2 = fAppleWebKitVersion >= 124;
			} else if (this.isKonq) {
				var reKonq = new RegExp("Konqueror\\/(\\d+(?:\\.\\d+(?:\\.\\d)?)?)");
				reKonq.test(sUserAgent);
				this.isMinKonq2_2 = this.compareVersions(RegExp["$1"], "2.2") >= 0;
				this.isMinKonq3 = this.compareVersions(RegExp["$1"], "3.0") >= 0;
				this.isMinKonq3_1 = this.compareVersions(RegExp["$1"], "3.1") >= 0;
				this.isMinKonq3_2 = this.compareVersions(RegExp["$1"], "3.2") >= 0;
			}
		}
		
		// Check for IE
		this.isIE = sUserAgent.indexOf("compatible") > -1
					&& sUserAgent.indexOf("MSIE") > -1
					&& !this.isOpera;
		this.isMinIE4 = this.isMinIE5 = this.isMinIE5_5 = this.isMinIE6 = false;
		if (this.isIE) {
			var reIE = new RegExp("MSIE (\\d+\\.\\d+);");
			reIE.test(sUserAgent);
			var fIEVersion = parseFloat(RegExp["$1"]);
			this.isMinIE4 = fIEVersion >= 4;
			this.isMinIE5 = fIEVersion >= 5;
			this.isMinIE5_5 = fIEVersion >= 5.5;
			this.isMinIE6 = fIEVersion >= 6.0;
		}
		
		// Check for Mozilla
		this.isMoz = sUserAgent.indexOf("Gecko") > -1
					  && !this.isKHTML;
		this.isMinMoz1 = this.isMinMoz1_4 = this.isMinMoz1_5 = false;
		if (this.isMoz) {
			var reMoz = new RegExp("rv:(\\d+\\.\\d+(?:\\.\\d+)?)");
			reMoz.test(sUserAgent);
			this.isMinMoz1 = this.compareVersions(RegExp["$1"], "1.0") >= 0;
			this.isMinMoz1_4 = this.compareVersions(RegExp["$1"], "1.4") >= 0;
			this.isMinMoz1_5 = this.compareVersions(RegExp["$1"], "1.5") >= 0;
		}
		
		// Check for Netscape
		this.isNS4 = !this.isIE && !this.isOpera && !this.isMoz && !this.isKHTML
					  && (sUserAgent.indexOf("Mozilla") == 0)
					  && (navigator.appName == "Netscape")
					  && (fAppVersion >= 4.0 && fAppVersion < 5.0);
		this.isMinNS4 = this.isMinNS4_5 = this.isMinNS4_7 = this.isMinNS4_8 = false;
		if (this.isNS4) {
			this.isMinNS4 = true;
			this.isMinNS4_5 = fAppVersion >= 4.5;
			this.isMinNS4_7 = fAppVersion >= 4.7;
			this.isMinNS4_8 = fAppVersion >= 4.8;
		}
		
		// Platform check
		
		this.isWin = (navigator.platform == "Win32") || (navigator.platform == "Windows");
		this.isMac = (navigator.platform == "Mac68K") || (navigator.platform == "MacPPC") || (navigator.platform == "Macintosh");
		
		this.isUnix = (navigator.platform == "X11") && !this.isWin && !this.isMac;
		
		this.isWin95 = this.isWinNT4 = this.isWin2K = this.isWinME = this.isWinXP = false;
		this.isMac68K = this.isMacPPC = false;
		this.isSunOS = this.isMinSunOS4 = this.isMinSunOS5 = this.isMinSunOS5_5 = false;
		
		if (this.isWin) {
			this.isWin95 = sUserAgent.indexOf('Win95') > -1
							|| sUserAgent.indexOf("Windows 95") > -1;
			this.isWin98 = sUserAgent.indexOf('Win98') > -1
							|| sUserAgent.indexOf("Windows 98") > -1;
			this.isWinME = sUserAgent.indexOf('Win 9x 4.90') > -1
							|| sUserAgent.indexOf("Windows ME") > -1;
			this.isWin2K = sUserAgent.indexOf('Windows NT 5.0') > -1
							|| sUserAgent.indexOf("Windows 2000") > -1;
			this.isWinXP = sUserAgent.indexOf('Windows NT 5.1') > -1
							|| sUserAgent.indexOf("Windows XP") > -1;
			this.isWinNT4 = sUserAgent.indexOf('WinNT') > -1
							|| sUserAgent.indexOf("Windows NT") > -1
							|| sUserAgent.indexOf("WinNT4.0") > -1
							|| sUserAgent.indexOf("Windows NT 4.0") > -1
							&& (!this.isWinME && !this.isWin2K && !this.isWinXP);
		}
		
		if (this.isMac) {
			this.isMac68K = sUserAgent.indexOf('Mac_68000') > -1
							|| sUserAgent.indexOf("68K") > -1;
			this.isMacPPC = sUserAgent.indexOf('Mac_PowerPC') > -1
							|| sUserAgent.indexOf("PPC") > -1;
		}
		
		if (this.isUnix) {
			this.isSunOS = sUserAgent.indexOf('SunOS') > -1;
			if (this.isSunOS) {
				var reSunOS = new RegExp("SunOS (\\d+\\.\\d+(?:\\.\\d+)?)");
				reSunOS.test(sUserAgent);
				this.isMinSunOS4 = this.compareVersions(RegExp["$1"], "4.0") >= 0;
				this.isMinSunOS5 = this.compareVersions(RegExp["$1"], "5.0") >= 0;
				this.isMinSunOS5_5 = this.compareVersions(RegExp["$1"], "5.5") >= 0;
			}
		}
		
		this.hasFlash = this.hasFlash6 = this.hasFlash7 = this.hasFlash8 = this.hasFlash9;
		var versionArray = [];
		for(var i=0; i<navigator.plugins.length; i++){
			  if (navigator.plugins[i].filename == "NPSWF32.dll" || navigator.plugins[i].filename == "flash.ocx"){
				this.hasFlash = true;
			  }
			  
			  var pluginIdent = navigator.plugins[i].description.split(" ");
			  if(pluginIdent[0] == "Shockwave" && pluginIdent[1] == "Flash"){
				var isSwfEnabled = true;
				versionArray = pluginIdent[2].split(".");
			  }
		}
		
		if (navigator.mimeTypes.length > 0) {
			this.hasFlash = (navigator.mimeTypes["application/x-shockwave-flash"].enabledPlugin != null);
		} else if (window.ActiveXObject) {
			try {
				new ActiveXObject("ShockwaveFlash.ShockwaveFlash");
				this.hasFlash = true;
			} catch (oError) {}
		}
		
		this.hasFlash6 = versionArray[0] >= 6;
		this.hasFlash7 = versionArray[0] >= 7;
		this.hasFlash8 = versionArray[0] >= 8;
		this.hasFlash9 = versionArray[0] >= 9;
		
		
		
	},
	
	compareVersions: function(sVersion1, sVersion2) {
		var aVersion1 = sVersion1.split(".");
		var aVersion2 = sVersion2.split(".");
		
		if (aVersion1.length > aVersion2.length) {
			for(var i=0; i<aVersion1.length - aVersion2.length; i++) {
				aVersion2.push("0");	
			}
		} else if (aVersion2.length < aVersion2.length) {
			for(var i=0; i<aVersion1.length - aVersion1.length; i++) {
				aVersion1.push("0");	
			}
		}
		
		for(var i=0; i<aVersion1.length; i++) {
			if (aVersion1[i] < aVersion2[i]) {
				return -1;
			} else if (aVersion1[i] > aVersion2[i]) {
				return 1;	
			}
		}
		
		return 0;
		
	}
}

browser.detect();

ApexUtil = {
	
	centerOnScreen: function(elmt, dims) {
		
		if (dims) {
			var w = dims.width;
			var h = dims.height;
			
		} else {
			var w = elmt.offsetWidth;
			var h = elmt.offsetHeight;
		}
		
		//if (console) console.log('IMAGE WIDTH: '+w+', IMAGE HEIGHT: '+h);
		
		var pageScroll = this.getPageScroll();
		
		//if (console) console.log('PAGE SCROLL: '+pageScroll);
		//if (console) console.log('PAGE SIZE: '+screen_overlay.arrayPageSize);
		
		var left = ((screen_overlay.arrayPageSize[2] - w) / 2);
		var top = ((screen_overlay.arrayPageSize[3] - h) / 2);
		
		//if (console) console.log('IMAGE LEFT: '+left+', IMAGE TOP: '+top);
				
		elmt.style.top = (top < 0) ? "0px" : (pageScroll[1]+top) + "px";
		elmt.style.left = (top < 0) ? "0px" : left + "px";
		if (console) console.log('IMAGE LEFT: '+elmt.style.left+', IMAGE TOP: '+elmt.style.top);
	},
	
	checkScrollNecessary: function(target, link) {
	  if (document.layers) {
		var coords = RicoUtil.toDocumentPosition($(link));
		//if (console) console.log('Scrolling to: ' + coords.x + ', ' + coords.y);
		window.scrollTo(coords.x , coords.y);
		return false;
	  } else if (!document.all && document.getElementById) {
		var coords = RicoUtil.toDocumentPosition($(link));
		//if (console) console.log('Scrolling to: ' + coords.x + ', ' + coords.y);
		window.scrollTo(coords.x , coords.y);
		return false;
	  }
	  else 
		return true;
	},
	
	registerEvent: function(target, func) {
		if (window.attachEvent)
			window.attachEvent("on"+target, func);
		else
			window.addEventListener(target, func, false);
	},
	
	switchImage: function(id, src) {
		$(id).src = src;	
	},

	getPageScroll: function() {
		var yScroll;

		if (self.pageYOffset) {
			yScroll = self.pageYOffset;
		} else if (document.documentElement && document.documentElement.scrollTop){	 // Explorer 6 Strict
			yScroll = document.documentElement.scrollTop;
		} else if (document.body) {// all other Explorers
			yScroll = document.body.scrollTop;
		}
	
		arrayPageScroll = new Array('',yScroll) 
		return arrayPageScroll;
	},
	
	switchDiv: function(off, on) {
		
		if (console) console.log('OFF: ' + typeof(off) + ', ON: ' + typeof(on));
		
		if (typeof(off) == 'object') {
			for(var i=0; i<off.length; i++) {
				$(off[i]).style.display = 'none';
			}
		} else {
			$(off).style.display = 'none';
		}
		
		if (typeof(on) == 'object') {
			for(var i=0; i<on.length; i++) {
				var str = on[i];
				$(str).style.display = '';
			}
		} else {
			$(on).style.display = '';
		}
	},
	
	getPageSize: function() {
		var xScroll, yScroll;
	
		if (window.innerHeight && window.scrollMaxY) {	
			xScroll = document.body.scrollWidth;
			yScroll = window.innerHeight + window.scrollMaxY;
		} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
			xScroll = document.body.scrollWidth;
			yScroll = document.body.scrollHeight;
		} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
			xScroll = document.body.offsetWidth;
			yScroll = document.body.offsetHeight;
		}
		
		var windowWidth, windowHeight;
		if (self.innerHeight) {	// all except Explorer
			windowWidth = self.innerWidth;
			windowHeight = self.innerHeight;
		} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
			windowWidth = document.documentElement.clientWidth;
			windowHeight = document.documentElement.clientHeight;
		} else if (document.body) { // other Explorers
			windowWidth = document.body.clientWidth;
			windowHeight = document.body.clientHeight;
		}	
		
		// for small pages with total height less then height of the viewport
		if(yScroll < windowHeight){
			pageHeight = windowHeight;
		} else { 
			pageHeight = yScroll;
		}
	
		// for small pages with total width less then width of the viewport
		if(xScroll < windowWidth){	
			pageWidth = windowWidth;
		} else {
			pageWidth = xScroll;
		}
	
	
		arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
		return arrayPageSize;	
	},
	
	addClass: function(elmt, str) {
		var classes = elmt.className.split(" ");
		if (classes.indexOf(str) == -1) {
			classes.push(str);	
		}
		return classes.join(" ");
	},
	
	removeClass: function(elmt, str) {
		var classes = elmt.className.split(" ");
		if (classes.indexOf(str) != -1) {
			var temp = [];
			for(var i=0; i<classes.length; ++i) {
				if (classes[i] != str) {
					temp.push(classes[i]);	
				}
			}
			classes = temp;
		}
		return classes.join(" ");
	},
	
	replaceClass: function(elmt, target, str) {
		var classes = elmt.className.split(" ");
		for(var i=0; i<classes.length; ++i) {
			if (classes[i] == target) {
				classes[i] = str;
			}
		}
		return classes.join(" ");
	},
	
	extractForm: function(form, params, encKey) {
		var elmts = form.elements;
		for(var i=0; i<elmts.length; i++) {
			var e = elmts[i];
			if (console) console.log(e.type + ', ' + e.name + ', ' + e.value);
			if (!e.getAttribute('noparse')) {
				
				if ((params instanceof Array)) {
					if (console) console.log('Array instance');
					switch(e.type) {
						case 'checkbox':
							if (e.getAttribute('usevalue')) {
								if (e.checked) {
									params.push(e.name +'='+e.value);	
								}
							} else {
								if (e.checked) {
									params.push(e.name +'=1');	
								} else {
									params.push(e.name +'=0');	
								}
							}
							break;
						case 'radio':
							if (e.checked) {
								params.push(e.name +'='+e.value);	
							}
							break;
						case 'select-one':
							if (e.value) {
								params.push(e.name +'='+e.value);
							}
							break;
						case 'select-multiple':

							if (e.name) {								
								var selected = this.getSelectedIndexes($(e.id), true);
								if (console) console.log('selected: ' + selected.length);
								for (var j=0; j<selected.length; ++j) {
									params.push(e.name + '[] =' +e.options[j].value);	
								}								
							}
							break;
						case 'hidden':
							if (e.value) {
								params.push(e.name +'='+e.value);
							}
							break;
						case 'text':
							if (e.value) {
								params.push(e.name +'='+e.value);
							}
							break;
						case 'password':
							if (e.getAttribute('encrypt') == 1 && encKey) {
								var res = encodeStr(encKey, e.value)
								params.push(e.name +'='+res.join('|'));
							} else {
								params.push(e.name +'='+e.value);
							}
							break;
						case 'textarea':
							if (typeof(txtEditor) != 'undefined') {
								if (typeof(txtEditor.save) != 'undefined') txtEditor.save(e.id);
							}
							if (e.value) {
								params.push(e.name +'='+e.value);
							}
							break;
					}
					
				} else {
					if (console) console.log('No Array instance');
					switch(e.type) {
						case 'checkbox':
							if (e.getAttribute('usevalue')) {
								if (e.checked) {
									params[e.name] = e.value;	
								}
							} else {
								if (e.checked) {
									params[e.name] = true	
								} else {
									params[e.name] = 0;
								}
							}
							break;
						case 'radio':
							if (e.checked) {
								params[e.name] = e.value;	
							}
							break;
						case 'select-one':
							if (e.value) {
								params[e.name] = e.value;
							}
							break;
							/*
						case 'select-multiple':
							var selected = this.getSelectedIndexes($(e.id));
								for (var j=0; j<selected.length; ++j) {
									params[e.name] += e.options[j]);	
								}								
							break;
							*/
						case 'hidden':
							if (e.value) {
								params[e.name] = e.value;
							}
							break;
						case 'text':
							if (e.value) {
								params[e.name] = e.value;
							}
							break;
						case 'password':
							if (e.getAttribute('encrypt') == 1 && encKey) {
								var res = encodeStr(encKey, e.value)
								params[e.name] = res.join('|');
							} else {
								params[e.name] = e.value;
							}
							break;
						case 'textarea':
							if (typeof(txtEditor) != 'undefined') {
								if (typeof(txtEditor.save) != 'undefined') txtEditor.save(e.id);
							}
							if (e.value) {
								params[e.name] = e.value;
							}
							break;
							
					}
				
				}
			}
		}
	},
	
	toggleDiv: function(header, id) {
		var target = $(id);
		var cur_state;
		var state;
		if (target.style.display) {
			target.style.display = '';
			cur_state = "closed";
			state = "open";
		} else {
			target.style.display = 'none';
			cur_state = "open";
			state = "closed";
		}

		if (header) {
			for(var i=0; i<header.childNodes.length; ++i) {
				var node = header.childNodes[i];
				var regEx = new RegExp(cur_state);
				if (regEx.test(node.className)) {
					node.className = this.replaceClass(node, cur_state, state);	
				}
			}
		}
	},
	
	formatLabel: function(label, chars) {
		
		var tail_len = Math.floor(chars * 0.50);
		var head_len = chars - tail_len - 3;
		
		var len = label.length;
		if (len > chars) {
			var diff = len - chars;
			var start = label.substr(0, head_len);
			var end = label.substr(len-tail_len, tail_len);
			label = start + "..." + end;
		}
		
		return label;
	},
	
	trim: function(str) {
		 return str.replace(/^\s*|\s*$/g,"");
	},
	
	evalScripts: function(elmt, is_string) {
		if (elmt) {
			if (browser.isIE) {
				var match    = new RegExp(Ajax.Updater.ScriptFragment, 'img');
				var str = (is_string) ? elmt : elmt.innerHTML;
				var scripts  = str.match(match) || [];
				match = new RegExp(Ajax.Updater.ScriptFragment, 'im');	
				for (var i = 0; i < scripts.length; i++) {
					if (console) console.log('SCRIPT: '+scripts[i]);
				  	eval(scripts[i].match(match)[1]);
				}
			}else {
			
				var scripts = elmt.getElementsByTagName('script');
				var pattern = /&amp;/g;
				//if (console) console.log('FOUND SCRIPTS '+scripts.length+' in '+elmt.id);
				for(var i=0; i<scripts.length; i++) {
					var code = (browser.isIE) ? scripts[i].innerHTML : RicoUtil.getContentAsString(scripts[i]);
					code = code.replace(pattern, '&');
					eval(code);
				}	
				
			}
		}
	},
	
	//moving from one select-box to another
	getSelectedIndexes: function(select_box, force) {		
		var arrIndexes = new Array();
		if (select_box.options) {			
			for (var i=0; i < select_box.options.length; i++) {
				
				if (force) {
					if (select_box.options[i].selected || select_box.getAttribute('active')) {
						select_box.options[i].setAttribute('selected', 1);
						arrIndexes.push(i);
					}
				} else {
					if (select_box.options[i].selected) {
						select_box.options[i].setAttribute('selected', 1);
						arrIndexes.push(i);
					}
				}
			}			
		}
		return arrIndexes;
	},
	
	selectBoxMove: function(from, to, mark) {
		var src = $(from);
		var target = $(to);		
		if (typeof(target) !== 'undefined') {
			var to_move = this.getSelectedIndexes(src);		
			for (var i=to_move.length-1; i >=0; i--) {
				var opt = src.options[parseInt(to_move[i])];			
				if (opt != null) {		
					opt.selected = false;
					target.appendChild(opt);
				}
			}
			if (mark) {this.selectAll(mark);}
		}
	},
	
	selectAll: function(select_box) {
		var target = $(select_box);
		if (typeof(target) !== 'undefined') {
			for (var i=0; i < target.options.length; i++) {
				target[i].selected = true;
			}
		}
	},
	
	removeAll: function(select_box) {
		$(select_box).innerHTML = '';
	},
	
	setInputs: function(targets, values) {
		var val = values.split(':');
		for(var i=0; i<targets.length; i++) {
			if (val[i]) {
				$(targets[i]).value = val[i];
			}
		}
	}
};

String.prototype.trim=function(){
    return this.replace(/^\s*|\s*$/g,'');
}

String.prototype.ltrim=function(){
    return this.replace(/^\s*/g,'');
}

String.prototype.rtrim=function(){
    return this.replace(/\s*$/g,'');
}


Array.prototype.indexOf=function(n){for(var i=0;i<this.length;i++){if(this[i]===n){return i;}}return -1;}
Array.prototype.lastIndexOf=function(n){var i=this.length;while(i--){if(this[i]===n){return i;}}return -1;}
Array.prototype.forEach=function(f){var i=this.length,j,l=this.length;for(i=0;i<l;i++){if((j=this[i])){f(j);}}};
Array.prototype.insert=function(i,v){if(i>=0){var a=this.slice(),b=a.splice(i);a[i]=value;return a.concat(b);}}
Array.prototype.shuffle=function(){var i=this.length,j,t;while(i--){j=Math.floor((i+1)*Math.random());t=arr[i];arr[i]=arr[j];arr[j]=t;}}
Array.prototype.unique=function(){var a=[],i;this.sort();for(i=0;i<this.length;i++){if(this[i]!==this[i+1]){a[a.length]=this[i];}}return a;}
if(typeof Array.prototype.concat==='undefined'){Array.prototype.concat=function(a){for(var i=0,b=this.copy();i<a.length;i++){b[b.length]=a[i];}return b;};}
if(typeof Array.prototype.copy==='undefined'){Array.prototype.copy=function(a){var a=[],i=this.length;while(i--){a[i]=(typeof this[i].copy!=='undefined')?this[i].copy():this[i];}return a;};}
if(typeof Array.prototype.pop==='undefined'){Array.prototype.pop=function(){var b=this[this.length-1];this.length--;return b;};}
if(typeof Array.prototype.push==='undefined'){Array.prototype.push=function(){for(var i=0,b=this.length,a=arguments;i<a.length;i++){this[b+i]=a[i];}return this.length;};}
if(typeof Array.prototype.shift==='undefined'){Array.prototype.shift=function(){for(var i=0,b=this[0];i<this.length-1;i++){this[i]=this[i+1];}this.length--;return b;};}
if(typeof Array.prototype.slice==='undefined'){Array.prototype.slice=function(a,c){var i=0,b,d=[];if(!c){c=this.length;}if(c<0){c=this.length+c;}if(a<0){a=this.length-a;}if(c<a){b=a;a=c;c=b;}for(i;i<c-a;i++){d[i]=this[a+i];}return d;};}
if(typeof Array.prototype.splice==='undefined'){Array.prototype.splice=function(a,c){var i=0,e=arguments,d=this.copy(),f=a;if(!c){c=this.length-a;}for(i;i<e.length-2;i++){this[a+i]=e[i+2];}for(a;a<this.length-c;a++){this[a+e.length-2]=d[a-c];}this.length-=c-e.length+2;return d.slice(f,f+c);};}
if(typeof Array.prototype.unshift==='undefined'){Array.prototype.unshift=function(a){this.reverse();var b=this.push(a);this.reverse();return b;};}