var popUpWin=0;
function showPhoto(strPhotoURL,w,h) {
  var width = w;
  var height = h;
  var left = 0;
  var top = 0;
  if (popUpWin) {
    if (!popUpWin.closed) popUpWin.close();
  }
  popUpWin = open(strPhotoURL, 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=yes,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
}