startList = function() {
	if (document.all&&document.getElementById("top_nav")) {
		navRoot = document.getElementById("top_nav");
		for (i=0; i<navRoot.childNodes.length; i++) {
			node = navRoot.childNodes[i];
			if (node.nodeName=="LI") {
				node.onmouseover=function() {
					this.className+=" over";
				}
				node.onmouseout=function() {
					this.className=this.className.replace(" over", "");
				}
			}
		}
	}
}
if(window.attachEvent) { // IE
window.attachEvent("onload",
startList);
} else { // DOM Level 2 -- everything but IE
window.addEventListener("load",
startList, false);
}