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

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;
  }
}

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;return function(event){return __method.call(object,event||window.event);}}


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

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);
    }
  }
});

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


function xml2object(xml){
		function xmlContent2object(element){
			var result = {};
			var attributes = element.attributes;
			var childNodes = element.childNodes;
			for(var i=0; i<attributes.length; i++){
				var attrName = attributes[i].name;
				var attrValue = attributes[i].value;
				result[attrName] = attrValue;
			}
			var hasElement = false;
			for(var i=0; i<childNodes.length; i++){
				var node = childNodes[i];
				if(node.nodeType == 1){ // element
					hasElement = true;
					var arr = result[node.tagName];
					if(!arr)
						arr = result[node.tagName] = [];
					arr[arr.length] = xmlContent2object(node);
				}
				if(node.nodeType == 3){ // text
					if(!hasElement)
						result["text"] = node.data;	//dont process mixed
				}
			}
			if(hasElement){
				delete result["text"];
			}
			else {
				Object.extend(result,result["text"]);
			}
			// normalize result
			for(var item in result){
				var value = result[item];
				if(value instanceof Array && value.length==1){
					value = result[item] = value[0];
				}
			}

			return result;
		}

		var result = {};
		if(xml.nodeType == 9) {// document
			xml = xml.documentElement;
		}
		result[xml.tagName] = xmlContent2object(xml);
		return result;
}

var ajax = {};
ajax = Class.create();
ajax.prototype = {
		initialize : function(url,method,asynchronous){
			//if(url.search("?") != -1)
			if(url.indexOf("?") != -1)
			{ 
				this.url = url+"&"+Math.random();
			}
			else
			{
				this.url = url+"?"+Math.random();
			}
			//alert(this.url);
			//this.url = url;
			this.method = method;
			this.asynchronous = asynchronous;
			this.transport = null;
		},
		 
		request : function(fun){
				this.transport = this.getTransport();
				this.transport.onreadystatechange =	fun!=undefined?fun.bind(this):function (){};
				this.transport.open(this.method,this.url,this.asynchronous);
				this.transport.send(null);
		},
		
		getXML : function(){
				return this.transport.responseXML;
		},
		
		getText : function(){
				return this.transport.responseText;
		},
		
		onload: function(){
			if( this.transport.readyState == 4 && this.responseIsSuccess() ){
				return true;	
			}else{
				return false;	
			}
		},
		
		responseIsSuccess: function() {
	    return this.transport.status == undefined
	        || this.transport.status == 0
	        || (this.transport.status >= 200 && this.transport.status < 300);
	  },
		
		getTransport: function() {
	    return Try.these(
	      function() {return new ActiveXObject('Msxml2.XMLHTTP')},
	      function() {return new ActiveXObject('Microsoft.XMLHTTP')},
	      function() {return new XMLHttpRequest()}
	    ) || false;
	  }
}




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


var Cookie = {
	setCookie : function(name,value){
		var Days = 30; 
    var exp  = new Date();    
    exp.setTime(exp.getTime() + Days*24*60*60*1000);
    document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString()+ ";path=/";
	},
	
	getCookie : function(name){
		var arr,reg=new RegExp("(^| )"+name+"=([^;]*)(;|$)");
    if(arr=document.cookie.match(reg)) return unescape(arr[2]);
    else return null;
	},
	
	delCookie : function(name){
		var exp = new Date();
    exp.setTime(exp.getTime() - 1);
    var cval=Cookie.getCookie(name);
    if(cval!=null) document.cookie= name + "="+cval+";expires="+exp.toGMTString();
	}
}

Object.extend(Array.prototype,{
	indexOf : function(n){
		for(var i=0;i<this.length;i++){
				if(this[i]==n){
						return i;
				}
		}
		return -1;
	},
	
	del : function(n) {
  	return this.slice(0,n).concat(this.slice(n+1,this.length));  
	}
})



function BufferString(){
	this._string = new Array();
}

BufferString.prototype.append = function(str){
	this._string.push(str);
}

BufferString.prototype.toString = function(){
	return this._string.join("");	
}

function getScrollTop(){
	var scrollTop; 
	if (typeof window.pageYOffset != 'undefined') { 
	   scrollTop = window.pageYOffset; 
	} 
	else if (typeof document.compatMode != 'undefined' && 
	     document.compatMode != 'BackCompat') { 
	   scrollTop = document.documentElement.scrollTop; 
	} 
	else if (typeof document.body != 'undefined') { 
	   scrollTop = document.body.scrollTop; 
	} 
	return scrollTop;
}

function getPos(obj,arg) {
	var posNum = 0;
	if (obj.offsetParent) {
		while (obj.offsetParent) {
			posNum += obj["offset"+arg];
			obj = obj.offsetParent;
		}
	}
	return posNum;
}