WB_onLoad = function(){

	WB_crossBrowser();

	WB_setRollOverToChild("_on", "rollOver");

}





//========================================================================================================================



WB_UA = function(){

	this.nUA = navigator.userAgent;

	this.DOM = document.getElementById           ? 1 : 0;

	this.Mac = (this.nUA.indexOf("Mac") > -1)    ? 1 : 0;

	this.Sa  = (this.nUA.indexOf("Safari") > -1) ? 1 : 0;

	this.Ge  = (this.nUA.indexOf("Gecko/") > -1) ? 1 : 0;

	this.Op  = window.opera                      ? 1 : 0;

	this.IE  = (document.all && !this.Op)        ? 1 : 0;

	this.IED = (this.IE  && this.DOM)            ? 1 : 0;

	this.IEM = (this.IED && this.Mac)            ? 1 : 0;

	this.IE7 =                                         0;

	this.sAW = screen       ? screen.availWidth  : 10000;

	this.sAH = screen       ? screen.availHeight : 10000;

}



var $UA = new WB_UA();



document.getElementsByClassName = function(){

	var Es = new Array();

	var aE = document.getElementsByTagName("*") || document.all;

	for(var i = 0; i < arguments.length; i ++){

		for(var j = 0; j < aE.length; j ++){

			var cNs = aE[j].className.split(" ");

			if(arguments[i].indexOf(" ") > -1){

				var cNsStr = " " + cNs.sort().join(" ") + " ";

				var argStr = " " + arguments[i].split(" ").sort().join(" ") + " ";

				if(cNsStr.indexOf(argStr) >= 0) Es.push(aE[j]);

			}else{

				for(var k = 0; k < cNs.length; k ++){

					if(cNs[k] == arguments[i]){

						Es.push(aE[j]);

						break;

					}

				}

			}

		}

	}

	return Es;

}



if($UA.IED){

	eOb = function(e){

		this.target = e.srcElement;

	}

	setELf = function(a){

		if($UA.IEM){

			if(a) return function(Ev, F){ eval("this.on" + Ev + " = function(){ return F(new eOb(event)); };"); };

			else  return function(Ev   ){ eval("this.on" + Ev + " = function(){ return; };"); };

		}else{

			if(a) return function(Ev, F){ this.attachEvent("on" + Ev, function(){ return F(new eOb(event)); }); };

			else  return function(Ev, F){ this.detachEvent("on" + Ev, F); };

		}

	}

	window.addEventListener    = document.addEventListener    = setELf(1);

	window.removeEventListener = document.removeEventListener = setELf(0);

}



WB_crossBrowser = function(){

	if($UA.IEM) Array.prototype.push = function(E){ this[this.length] = E; };

	if($UA.IED && !$UA.IE7){

		var aE = document.getElementsByTagName("*") || document.all;

		for(var i = 0; i < aE.length; i ++){

			aE[i].addEventListener    = setELf(1);

			aE[i].removeEventListener = setELf(0);

		}

	}

}



//========================================================================================================================



WB_setRollOverToChild = function(P, V){

	var setCSf = function(I, S){ return function(){ I.src = S; }; };

	var Es = document.getElementsByClassName(V);

	for(var i = 0; i < Es.length; i ++){

		var I = Es[i].getElementsByTagName("img")[0];

		var O_src = new Image().src = I.src.replace(/(\.png|\.gif|\.jpg)/, P + "$1");

		Es[i].addEventListener("mouseover", setCSf(I, O_src), false);

		Es[i].addEventListener("mouseout",  setCSf(I, I.src), false);

	}

}

//========================================================================================================================



window.addEventListener("load", WB_onLoad, false);



//========================================================================================================================