function startList() {
	if (document.getElementById) {
		navRoot = document.getElementById("nav");
		for (i=0; (node = navRoot.childNodes[i]); i++) {
			if (node.nodeName=="LI") {
				node.onmouseover=function() {
					this.className="hover";
				}
				node.onmouseout=function() {
					this.className=" ";
				}
			}
		}
	}
}

window.onload=startList;