sfHover = function() {
		var sfEls = document.getElementsByID("navbar").getElementsByTagName("li");
		for (var i=0; i<sfEls.length; i++) {
				sfEls[i].onmouseover=function() {
					this.className+="over";
				}
				sfEls[i].onmouseout=function() {
					this.className=this.className.replace(new RegExp(" over\\b"), "");
				}
		}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);