startList = function() {
	if (document.all&&document.getElementById) {

		navRoot = document.getElementById("nav");
		if (navRoot) {
			for (i=0; i<navRoot.childNodes.length; i++) {
				node = navRoot.childNodes[i];
				if (node.nodeName=="LI") {
					node.onmouseover=function() {
						this.className+="over";
						this.style.zIndex=100;
					}
					node.onmouseout=function() {
						this.className=this.className.replace("over", "");
						this.style.zIndex=0;
					}
				}
			}
		}
	}
}
window.onload=startList;