mainNavHover = function() {
	var sfEls = document.getElementById("verticalmenu").getElementsByTagName("LI");
	
	for ( var i=0; i<sfEls.length; i++ ) {
		sfEls[i].onmouseover=function() {
			this.className+=" over";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" over\\b"), "");
		}
	}
}

if (window.attachEvent)
{
	window.attachEvent("onload", mainNavHover);
}