startList = function() {
	if (document.all && document.getElementById) {
		if (navigator.appVersion.indexOf("Mac") != -1) {
		 	/* IE Mac */
		} else {
			navRoot = document.getElementById("nav");
			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;