sfHover = function() {
	
	var liLoc = document.getElementById('nav_locations');
	
	liLoc.onmouseover=function() 
	{
		this.className+=" sfhover";
	}
	
	liLoc.onmouseout=function() 
	{
		this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
	}
	
}
if (window.attachEvent) window.attachEvent("onload", sfHover);