var sfHover = function() {
	$$("#sideNav li").each(function(nav) {
		nav.addEvent('mouseover', function(e) {
			this.addClass("sfhover");
		});
		nav.addEvent('mouseout', function(e) {
			this.removeClass("sfhover");
		});
	});
	$$("#nav li").each( function(nav) {
		nav.addEvent( 'mouseover' ,function(e) {
			this.addClass("sfhover");
		});
		nav.addEvent('mouseout', function(e) {
			this.removeClass("sfhover");
		});
	});
	$$("#top-nav li").each( function(nav) {
		nav.addEvent( 'mouseover' ,function(e) {
			this.addClass("sfhover");
		});
		nav.addEvent('mouseout', function(e) {
			this.removeClass("sfhover");
		});
	});
}
window.addEvent('load', sfHover);
<!--/* 0.0010599034245036 */-->