if(window.addEventListener) {
	window.addEventListener('load', smartRollover, false);
} else if(window.attachEvent){
	window.attachEvent('onload', smartRollover);
} else {
	window.onload = smartRollover;
}

function smartRollover() {
	if(document.getElementsByTagName) {
		var images = document.getElementsByTagName("img");
		
		for(var i=0; i < images.length; i++) {
			try{
				if(images[i].getAttribute("src").match("_off\\."))
				{
					var nonRollCheck ;
					nonRollCheck = images[i].getAttribute('className');
					nonRollCheck = (nonRollCheck == null) ? images[i].getAttribute('class') : nonRollCheck;
					
					nonRollCheck = nonRollCheck ? nonRollCheck.match(/(^|\s)no_rollover(\s|$)/) : false;
					
					if (!nonRollCheck)
					{
						ImgSrc = images[i].getAttribute("src").replace("_off.", "_on.");
						new Image().src = ImgSrc;
						
						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."));
						}
					}				
				}
			} catch(myError) {
			}
		}
	}
}