function popup(url) {
	url='../images/popImages/'+url;
	/*image = new Image()
    image.src = url;*/
	var vensterBreedte = 370;
	var vensterHoogte = 370;
	/*vensterBreedte = image.width;
	vensterHoogte = image.height;*/
	var schermBreedte = screen.availWidth ;
	var schermHoogte = screen.availHeight ;
	var vensterLeft = ( schermBreedte - vensterBreedte ) / 2;
	var vensterTop = ( schermHoogte - vensterHoogte ) / 2;
	var opties = " width =" + vensterBreedte ;
	opties += " , height =" + vensterHoogte ;
	opties += " , left =" + vensterLeft ;
	opties += " , top =" + vensterTop ;
	opties += " , scrollbars =no ";
	opties += " , resizable =no ";
	window.open (url,"",opties);
}