var helper;
// Fenster oeffnen
function open_window( titel, name, breite, hoehe, look ) {
	if( helper ) {
		helper = window.open(titel, name, 'width='+breite+',height='+hoehe+','+look);
		helper.close();
	}
	helper = window.open(titel, name, 'width='+breite+',height='+hoehe+','+look);
};

function popup_exposeimage(){ open_window( '', 'expimage', 650, 500,  'resizable=1,scrollbars=1,toolbar=0,status=0,menubar=0,location=0,directories=0' ); }
	// -->