function brochurepopup(url) {
 window.open(url, "Brochure","toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=yes, copyhistory=no, width=600, height=840", false);
}

function openvenster(href) { 
	var win = window.open(href, 'Kalveropfoknieuws', 'height=650, width=600, top=20, left=10, scrollbars=1'); 
	win.focus(); 
	return false; 
}