function ShowSubmenu(object)
{
	//	padding container bepalen
	
		var container = document.getElementById("container");
	
		if (container.currentStyle) // IE
		{
			var padding = container.currentStyle.paddingLeft;
		}
		else // FF
		{
			var padding = window.getComputedStyle(container,null).getPropertyValue("padding-left");
		}
	
	//	positie submenu bepalen
	
		var obj = document.getElementById(object);
		var posX = parseInt(obj.offsetLeft) + parseInt(padding);
		//var posY = obj.offsetTop;
	
	//	submenu tonen & positioneren
	
		document.getElementById('subnavigatie').style.left = posX+"px";
		document.getElementById('subnavigatie').style.display = "block";
		document.getElementById('subnavigatie').style.visibility = "visible";
}

function HideSubmenu()
{
	document.getElementById('subnavigatie').style.display = "none";
	document.getElementById('subnavigatie').style.visibility = "hidden";
}