function popup() {
return;
}

function venster(breedte, hoogte, bron, titel) {
var links = Math.round(screen.width/2 - breedte/2);
var boven = Math.round(screen.height/2 - hoogte/2);
window.open(bron, titel, "width="+breedte+",height="+hoogte+",top="+boven+",left="+links+",scrollbars=no,resizable=no,menubar=no,toolbar=no,status=no");
}

function doorverwijzen(object){
  window.location=object.options[object.selectedIndex].value;
}

function sure() {
	return confirm("Are you sure you want to delete this item?");
}