function showMenu(parentElem, menuElemId)
{
	var p = parentElem;
	var l = 0;
	var t = 0;
		
	while (p.tagName != "BODY" && p.tagName != "HTML")
	{
		l += parseInt(p.offsetLeft, 10);
		t += parseInt(p.offsetTop, 10);
		p = p.offsetParent;
	}

	var menuElem = document.getElementById(menuElemId);
	menuElem.style.left = (l - 5) + "px";
	menuElem.style.top = (t + 14) + "px";
	menuElem.style.display = "block";
}

function hideMenu(menuElemId)
{
	var menuElem = document.getElementById(menuElemId);
	menuElem.style.display = "none";
}