alHover = function() {
	var alEls = document.getElementById("menu").getElementsByTagName("li");
	for (var i=0; i<alEls.length; i++) {
		alEls[i].onmouseover=function() {
			this.className+=" alhover";
		}
		alEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" alhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", alHover);