function rolloverImg() {
	if(document.getElementsByTagName) {
		var images = document.getElementById("index").getElementsByTagName("img");
		var cache = new Array();

		for(var i=0; i < images.length; i++) {
			if(images[i].getAttribute("src").match("_off."))
			{
				cache[i] = new Image();
				cache[i].src = images[i].getAttribute("src").replace("_off.", "_over.");
				images[i].onmouseover = function() {
					this.setAttribute("src", this.getAttribute("src").replace("_off.", "_over."));
				}
				images[i].onmouseout = function() {
					this.setAttribute("src", this.getAttribute("src").replace("_over.", "_off."));
				}
			}
		}
	}
}

try {
	document.execCommand('BackgroundImageCache', false, true);
} catch(e) {}

function onLoadFunc() {
	rolloverImg();
}

if(window.addEventListener) {
	window.addEventListener("load", onLoadFunc, false);
}else if(window.attachEvent) {
	window.attachEvent("onload", onLoadFunc);
}