function shopPopUp(mylink, windowname)
{
  if (! window.focus)return true;
  var href;
  if (typeof(mylink) == 'string')
     href=mylink;
  else
     href=mylink.href;
  window.open(href, windowname, 'width=700,height=700,toolbar=yes,location=yes,scrollbars=yes,resizable=yes,menubar=yes');
  return false;
}