sfHover = function() {
	var nav = document.getElementById("nav");
	var navtop = document.getElementById("navtop");
	
	if(navtop != null)
	{
		var sfEls = navtop.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(nav != null)
	{
		var sfEls = nav.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);