var startList = function() {
	if (document.all&&document.getElementById) {
		navRoot = document.getElementById("nav");
		for (i=0; i<navRoot.childNodes.length; i++) {
			ulnode = navRoot.childNodes[i];
			if (ulnode.nodeName=="UL") {	
				for (i=0; i<ulnode.childNodes.length; i++) {
					node = ulnode.childNodes[i];
					if (node.nodeName=="LI") {
						node.onmouseover=function() {
							this.className+=" over";
						}
						node.onmouseout=function() {
							this.className=this.className.replace(" over", "");
						}
					}
				}					
			}
		}	
	}
}
window.onload=startList;