function imagePopup(url) {
  window.name = 'parent';
  win=window.open(url,'potDetail',"width=500,toolbar=no,location=no,menubar=no,scrollbars=yes,resizable=yes,status=yes");
  if (window.focus) {win.focus()}
  return false;
}

function resizeAndBack() {
  window.resizeTo(500, 600);
  history.go(-1);
  return false;
}