function smartRollover() {
	if(document.getElementsByTagName) {
		var images = document.getElementsByTagName("img");
		for(var i=0; i < images.length; i++) {
			if(images[i].getAttribute("id") != "lightboxImage")
			{
				if(images[i].getAttribute("src").match("_off."))
				{
					images[i].onmouseover = function() {
						this.setAttribute("src", this.getAttribute("src").replace("_off.", "_on."));
					}
					images[i].onmouseout = function() {
						this.setAttribute("src", this.getAttribute("src").replace("_on.", "_off."));
					}
				}
			}
		}
	}
}
if(window.addEventListener) {
	window.addEventListener("load", smartRollover, false);
}
else if(window.attachEvent) {
	window.attachEvent("onload", smartRollover);
}
// cross fade
new function(){
	function setRollOver2(){
		if(!document.images){return;}
		var imgs = document.images;
		var insert = [];
		for(var i=0;i<imgs.length;i++){
		var splitname = imgs[i].src.split('_off.');
			if((splitname[1])&&(imgs[i].parentNode.tagName=='A')){
				var rolloverImg = document.createElement('img');
				rolloverImg.src = splitname[0]+'_on.'+splitname[1];
				var alpha = 0;
				rolloverImg.currentAlpha = alpha;
				rolloverImg.style.opacity = alpha/100;
				rolloverImg.style.filter = 'alpha(opacity='+alpha+')';
				rolloverImg.style.position = 'absolute';
				addEvent(rolloverImg,'mouseover',function(){setFader(this,100);});
				addEvent(rolloverImg,'mouseout',function(){setFader(this,0);});
				insert[insert.length] = {position:imgs[i],element:rolloverImg};
			}
		}
		for(var i=0;i<insert.length;i++){
			var parent = insert[i].position.parentNode;
			parent.insertBefore(insert[i].element,insert[i].position);
		}
	}
	function setFader(targetObj,targetAlpha){
		targetObj.targetAlpha = targetAlpha;
		if(targetObj.currentAlpha==undefined){
			targetObj.currentAlpha = 100;
		}
		if(targetObj.currentAlpha==targetObj.targetAlpha){
			return;
		}
		if(!targetObj.fading){
			if(!targetObj.fader){
				targetObj.fader = fader;
			}
			targetObj.fading = true;
			targetObj.fader();
		}
	}
	function fader(){
		this.currentAlpha += (this.targetAlpha - this.currentAlpha)*0.2;
		if(Math.abs(this.currentAlpha-this.targetAlpha)<1){
			this.currentAlpha = this.targetAlpha;
			this.fading = false;
		}
		var alpha = parseInt(this.currentAlpha);
		this.style.opacity = alpha/100;
		this.style.filter = 'alpha(opacity='+alpha+')';
		if(this.fading){
			var scope = this;
			setTimeout(function(){fader.apply(scope)},50);	//‘¬“x
		}
	}
	function addEvent(eventTarget, eventName, func){
		if(eventTarget.addEventListener){
			eventTarget.addEventListener(eventName, func, false);
		}else if(window.attachEvent){
			// IE
			eventTarget.attachEvent('on'+eventName, function(){func.apply(eventTarget);});
		}
	}
	addEvent(window,'load',setRollOver2);
}