function ShowImage(file, orientation) {
  if(orientation==0) {
    w='width=680,height=510';
  }
  else {
    w='width=520,height=670';
  }
	win = window.open('', 'PhotoWindow' , w + ',screenX='+(screen.availWidth/2-320)+',screenY=10,left='+(screen.availWidth/2-320)+',top=10,toolbar=no,location=no,directories=no,status=no,menubar=no,resizable=yes,scrollbars=yes');
	win.location.href='photo_show.php?file=' + file;
}