function openBox(url){


	// BREEDTE EN HOOGTE VAN WINDOW BEPALEN
	var cheight = document.documentElement.clientHeight;
	var cwidth = document.documentElement.clientWidth;	


	var popupHeight = cheight-100;
	var popupWidth =  cwidth-100;	
	var ouLinkHeight = cheight-150;	


	new Effect.Morph('popupbox', {
	  style: {
		width: popupWidth+'px',
		height: popupHeight+'px'
	  }, // CSS Properties
	  delay: 0.5, // Core Effect properties
	  duration: 0.2 // Core Effect properties	  
	});
	
	new Effect.Morph('layer', {
	  style: {
		height: cheight+'px'
	  }, // CSS Properties
	  duration: 0.5 // Core Effect properties
	});	


	Effect.Appear('fFrame', { delay: 0.8 });
	Effect.Appear('closeLayer', { delay: 0.8 });


	//document.getElementById('fFrame').style.display='block';
	//document.getElementById('closeLayer').style.display='block';	



	// BREEDTE EN HOOGTE TOEWIJZEN AAN DIVS
	//document.getElementById('layer').style.height= cheight+ 'px';	
	document.getElementById('outLink').style.height = cheight-150 + 'px';
	//document.getElementById('popupbox').style.height= cheight-100 + 'px';
	//document.getElementById('popupbox').style.width= cwidth-100 + 'px';	
	document.getElementById('popupbox').style.left= '-'+(cwidth-80) / 2 + 'px';		
	

	// CONTENT TOEWIJZEN AAN DIVS
	document.getElementById('closeLayer').innerHTML = '<a id="leftLink" href="'+url+'" target="_blank">Open deze site in een nieuw venster</a>  <a id="rightLink" href="#" onclick="closeBox(); return false;">Sluiten</a>';
	document.getElementById('outLink').src=url;		
	
	
	// DE DIVS ZICHTBAAR MAKEN
	document.getElementById('layer').style.display='block';
	document.getElementById('popupbox').style.display='block';	
	document.getElementById('ledenZoeker').style.display='none';

	
}

function closeBox(){

	// BREEDTE EN HOOGTE RESETTEN
	document.getElementById('layer').style.height= '1px';	
	document.getElementById('popupbox').style.height= '1px';
	document.getElementById('popupbox').style.width= '1px';	
	
	// ALLES ONZICHTBAAR MAKEN
	document.getElementById('layer').style.display='none';
	document.getElementById('popupbox').style.display='none';	
	document.getElementById('ledenZoeker').style.display='block';
	document.getElementById('fFrame').style.display='none';
	document.getElementById('closeLayer').style.display='none';	

	// IFRAME OP LEEG ZETTEN
	document.getElementById('outLink').src='';
}

function keypress()
{
	if(event.keyCode == 27){ // Capture Esc key
	 closeBox();
	 return false;
	}
}