function previewBigPic(what)
{
  stri = "./photo-preview.php?photo=";
  stri = stri.concat(what);
  legals = open (stri, 'boko-preview', 'resizable=yes,status=no,toolbar=no,menubar=no,titlebar=no,location=no,scrollbars=yes,width=1000,height=750');
}