function showMenu(vid,mid,nclass)
{
	var offsetParent,x,y;

	var vobj=document.getElementById(vid);
	var mobj=document.getElementById(mid);

	offsetParent = mobj;
	x=0;
	y=0;
	while(offsetParent!=null && offsetParent.tagName.toUpperCase()!="BODY") {
		x+=offsetParent.offsetLeft;
		y+=offsetParent.offsetTop;
		offsetParent=offsetParent.offsetParent;
	};

	vobj.style.top=y+parseInt(mobj.style.height);
	vobj.style.left=x;
	vobj.style.display='';
}

function hideMenu(vid)
{
	var vobj=document.getElementById(vid);
	vobj.style.display='none';
}