function popup (url)
{
	fenster = window.open(url, "Bildergalerie", "width=745,height=620,resizable=yes");
	fenster.focus();
	return false;
}


function adminpopup(url, breite, hoehe)
{
  newwindow=false;
  if(newwindow&&newwindow.closed==false)
		newwindow.close()
	var l = (screen.availWidth - breite) / 2;
    var t = (screen.availHeight - hoehe) / 2;
    newwindow = window.open(url,"newwindow","width=" + breite +
                                            ",height=" + hoehe +
                                            ",left=" + l +
                                            ",top=" + t + ";");
  newwindow.focus();
}
function msgbox(text)
{
	alert(text);
}