function menuRollover (){
	var subEls= document.getElementById("searchnav").getElementsByTagName("li");
	for (var i=0; i<subEls.length; i++) {
		subEls[i].onmouseover=function () {
			this.className+=" subhover";
		}
		subEls[i].onmouseout=function () {
			this.className=this.className.replace(new RegExp("subhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload",menuRollover);