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