startList = function() {
	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;
window.onresize=startList;