var menuids=["treemenu1"];
function buildsubmenus_horizontal(){
	for (var i=0; i<menuids.length; i++){
		var ultags=document.getElementById(menuids[i]).getElementsByTagName("ul");
		for (var t=0; t<ultags.length; t++){
			if (ultags[t].parentNode.parentNode.id==menuids[i]){
				ultags[t].style.top=ultags[t].parentNode.offsetHeight+"px";
			}else{
				ultags[t].style.left=ultags[t-1].getElementsByTagName("a")[0].offsetWidth+"px";
			}
			
			ultags[t].parentNode.onmouseover=function(){
				this.getElementsByTagName("ul")[0].style.visibility="visible";
			}
			
			ultags[t].parentNode.onmouseout=function(){
				this.getElementsByTagName("ul")[0].style.visibility="hidden";
			}
		}
	}
}

if (window.addEventListener)
	window.addEventListener("load", buildsubmenus_horizontal, false);
else if (window.attachEvent)
	window.attachEvent("onload", buildsubmenus_horizontal);