$$('.product-image-popup').each(function(anchor) {
  Event.observe(anchor, 'click', function(event) {
    window.open(anchor.href,'popupWindow','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=yes,copyhistory=no,width=525,height=400');
    Event.stop(event);
  });
});

$$('.shipping-faq-popup').each(function(anchor) {
  Event.observe(anchor, 'click', function(event) {
    window.open(anchor.href,'popupWindow','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,copyhistory=no,width=600,height=145');
    Event.stop(event);
  });
});