function show_image(pic_id, d_dir, title, width, height) {
  s = 'toolbar=no,menubar=no,location=no,personalbar=no,scrollbars=no,directories=no,status=no,resizable=no,' + 'width=' + width + ',height=' + height;
  NewWin=window.open('_show_pic.php?d='+d_dir+'&id='+pic_id,'',s);
  NewWin.focus();
}