commit 6926ecb370bb625f5a37937057975d2f0841afb5
Author: Joel Pittet <joel@pittet.ca>
Date:   Tue Sep 15 15:05:17 2015 -0700

    function

diff --git a/js/dc_ajax_add_cart.js b/js/dc_ajax_add_cart.js
index 22c663b..d51eb87 100644
--- a/js/dc_ajax_add_cart.js
+++ b/js/dc_ajax_add_cart.js
@@ -1,10 +1,12 @@
 (function ($, Drupal, window, document, undefined) {
   Drupal.behaviors.dcAjaxAddCart = {
     attach: function (context, settings) {
+      // Close the add to cart overlay.
       function closeAddToCartOverlay() {
         $('#add-to-cart-overlay').fadeOut('fast');
         $('.add-cart-message-wrapper').css('display', 'none');
       }
+
       $('body').delegate('[data-dismiss="add-cart-message"]', 'click', closeAddToCartOverlay);
       $(document).keyup(function(e) {
         // Close overlay with esc key.