sfHover = function() {
	$$("#nav li").each(function(s)
	{	s.onmouseover=function() {
			this.addClassName("sfhover");
		}
		s.onmouseout=function() {
			this.removeClassName("sfhover");
		}
	});
}
if (window.attachEvent) window.attachEvent("onload", sfHover);