startList = function() {
	navRoot = document.getElementById("top-menu");
	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;