'');
          }
      });
      // click cart button
      $('#btn-cart').click(function(event) {
        var $selectedRadio = $('input[name=products]:checked');
        var productId = ($selectedRadio.val());
        if (!productId) {
            alert('Please select your product to order!');
            return false;
        }
        // submit form
        event.preventDefault();
        var $form = $selectedRadio.parentsUntil('li').parent();
        $.ajax({
            url: 'http://www.promiseprenatal