function initPage(){
	var ul = document.getElementById("nav");
	var lis = ul.getElementsByTagName("li");
	for (var j=0; j<lis.length; j++) {
		lis[j].onmouseover = function(){
			this.className += " hover";
			if (this.getElementsByTagName("ul")[0]) {
					this.getElementsByTagName("ul")[0].style.width = this.offsetWidth + "px";
				}
		}
		lis[j].onmouseout = function(){
			this.className = this.className.replace(new RegExp("hover"),"");			}
		}
}
if (window.addEventListener) window.addEventListener("load", initPage, false);
else if (window.attachEvent) window.attachEvent("onload", initPage);