function initPage() {
	var navRoot = document.getElementById("menu");
	var lis = navRoot.getElementsByTagName("li");
	for (var i=0; i<lis.length; i++) {
		lis[i].onmouseover = function() {
			this.className += " hover";
		}
		lis[i].onmouseout = function() {
			this.className = this.className.replace("hover", "");
		}
	}
}
if (window.attachEvent && !window.opera) {
	window.attachEvent("onload", initPage);
}