var showedLayer;
window.onresize = showLayer;


function showLayer(id)
{
	if(typeof id == "object" || typeof id == "undefined")
	{
		//id = showedLayer;
	}
	if(typeof showedLayer != "undefined")
	{
		//document.getElementById('active').style.display = 'none';
	}
	var submenu = document.getElementById('active');
	var hartslag = document.getElementById('hartslag');
	if(submenu)
	{
		var x = getOffsetLeft(submenu);
		var y = getOffsetTop(submenu);
		hartslag.style.position = "absolute";	
		hartslag.style.top = (y+19);
		hartslag.style.left = (x + (submenu.offsetWidth/2) -5);
		hartslag.style.display = 'block';
	}
}

function getOffsetLeft (el) 
{ 
	var ol = el.offsetLeft; 
	while ((el = el.offsetParent) != null) 
	{
		ol += el.offsetLeft; 
	}
	return ol; 
} 

function getOffsetTop (el) 
{ 
	var ot = el.offsetTop; 
	while((el = el.offsetParent) != null)
	{ 
		ot += el.offsetTop; 
	}
	return ot; 
}