sfHover = function() {

	var sfEls1 = document.getElementById("topnavsections").getElementsByTagName("LI");

	for (var i=0; i<sfEls1.length; i++) {
		sfEls1[i].onmouseover=function() {
			this.className+="sfhover";
		}
		sfEls1[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp("sfhover\\b"), "");
		}
	}
}