// Detailbild in einem Popup-Fenster öffnen
function showImage ( url, width, height ) {
	width		= width + 40;
	height		= height + 40;
	var fenster	= window.open( url, 'show_image', 'toolbar=0, location=no, directories=no, status=no, menubar=0, scrollbars=yes, resizable=yes, history=no, width=' + width + ', height=' + height );
	fenster.focus();
	return false;
}