function sfHoverEvents(sfEls) {
		var len = sfEls.length;
		for (var i=0; i<len; i++){
			sfEls[i].onmouseover=function() {this.className+=" sfhover";}
			sfEls[i].onmouseout=function() {this.className=this.className.replace(" sfhover", ""); } 
		} 
	}
	function sfHover(){ 
		var ULs=document.getElementsByTagName("UL");
		var len=ULs.length;
		for(var i=0;i<len;i++){ 
			if(ULs[i].className.indexOf("sf-menu") != -1){
				sfHoverEvents(ULs[i].getElementsByTagName("LI"));
			}
		} 
	}
	if (window.attachEvent){ 
		window.attachEvent("onload", sfHover);
	}