function findPosY(obj)
{
	var curtop = 0;
	if (obj.offsetParent)
	{
		while (obj.offsetParent)
		{
			curtop += obj.offsetTop
			obj = obj.offsetParent;
		}
	}
	else if (obj.y)
		curtop += obj.y;
	return curtop;
}

var curId=null;
var timer=null;

function closeMenu(){
	if(curId!=null){
	    document.getElementById(curId).style.display="none";
	    document.getElementById(curId).style.top=-1000
	    curId=null;
	    window.clearTimeout(timer);
	}
}

function resetTimer(){
	if(timer!=null)
		window.clearTimeout(timer);
}

function mouseOut(){
    timer=window.setTimeout("closeMenu()", 1000);
}

function openMenu(obj, id){
    var item = document.getElementById(id);
    if(curId!=null)
	    document.getElementById(curId).style.display="none";
	item.style.top=findPosY(obj);
    item.style.display="block";
    curId=id;
	resetTimer();
 }