startList = function() {
	if (document.all && document.getElementById) {
		navRoot = document.getElementById("topnav");
		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", "");
		}
		}
		}
	}
}
window.onload=startList;