sfHover = function() {
	if(document.getElementById("nav")){
        var sfEls = document.getElementById("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(document.getElementById("nav1")){
        var sfEls = document.getElementById("nav1").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);