/* Zoomfunktion im Popupfenster */
function zoom(file,w,h)
{
window.open('zoom.php?file='+file, 'bild', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,copyhistory=no,width='+ w +',height='+ h +',left=' + ((screen.width/2) - (w/2)) + ',top=' + ((screen.height/2) - (h/2)) + ' ')
}