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