sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
		    if (this.className.split('last').length > 1) {
			  //alert(this.className);
			  this.className+=" sfhover lastie ";
 			  
			} else {
			  this.className+=" sfhover "
			}
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
			this.className=this.className.replace(new RegExp(" lastie\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);