sfHover = function() {
//alert("Applying Revised Rollovers.");
	if (!document.getElementById("nav")) return;
	var sfEls = document.getElementById("nav").getElementsByTagName("li");
	//var sfEls = document.getElementById("topnav");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			if (this.className!="subhd") {
				this.className = "sfhover " + this.className;
			}
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp("sfhover \\b"), "");
		}
	}
}
window.onload=sfHover;