// <![CDATA[
	var breite_screen = screen.width;
	var hoehe_screen = screen.height;
	
	function popup(inhalt, name, breite, hoehe){
		position_x = (breite_screen - breite)/2;
		position_y = (hoehe_screen - hoehe)/2 - hoehe/2;
		window.open(inhalt, name, "location=no,status=no,scrollbars=no,directories=no,resizable=no,width=" + breite + ",height=" + hoehe + ",left=" + position_x + ",top=" + position_y);
	}
// ]]>