function initMenu(){
	var nodes = document.getElementById("nav").getElementsByTagName("li");
	for (var i=0; i<nodes.length; i++){
		if(nodes[i].getElementsByTagName("ul").length >0){
			nodes[i].getElementsByTagName("ul")[0].style.width = nodes[i].offsetWidth - 4 + "px";
		}
		nodes[i].onmouseover = function(){
			this.className += " hover";
		}
		nodes[i].onmouseout = function(){
			this.className = this.className.replace(" hover", "");
		}
	}
}
if (window.addEventListener) window.addEventListener("load", initMenu, false);
else if (window.attachEvent) window.attachEvent("onload", initMenu);