sfHover = function() {
	var alltags=document.all? document.all : document.getElementsByTagName("*");
	for (i=0; i<alltags.length; i++){ 
		if (alltags[i].className.substr(0,3)=="bl-") {
			var sfEls = alltags[i].getElementsByTagName("LI");
			for (var j=0; j<sfEls.length; j++) {
				sfEls[j].onmouseover=function() {
				this.className+=" sfhover";
			}
			sfEls[j].onmouseout=function() {
					this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
				}
			}
			
		
		}
	} 
}

if (window.attachEvent) window.attachEvent("onload", sfHover);