var large = null;

function openLarge(pagina,titel,breedte,hoogte)
  {
  if(pagina.toLowerCase().substring(0,pagina.toLowerCase().indexOf('.jpg',0)) || pagina.toLowerCase().substring(0,pagina.toLowerCase().indexOf('.gif',0)))
	{
	large = window.open('',titel,'width='+breedte+',height='+hoogte+',status=no,toolbar=no,menubar=no,location=no');
	large.document.write("<html><head><title>Juweliershuis Brummer (foto)</title></head><body topmargin='0' leftmargin='0'><p align='center'><img src='../../html/scripts/%22+pagina+%22'></p></body></html>");
	}
  
  else
	{
	large = window.open(pagina,titel,'width='+breedte+',height='+hoogte+',status=no,toolbar=no,menubar=no,scrollbars=yes,location=no');
	}
  }
  
function openLargeImg(objImg) {
	var thumbExt = "_kl";
	var imgURL = objImg.src;
	var urlLength = objImg.src.length;
	var extPos = imgURL.indexOf(thumbExt);
	var bigURL = imgURL.substring(0,extPos) + imgURL.substring((extPos+thumbExt.length),urlLength);
	var newWidth, newHeight;
	newHeight = 600;
	newWidth = (objImg.width/objImg.height)*newHeight;
	openLarge(bigURL,objImg.name,newWidth,newHeight);
}