Merge pull request #111 from edx/js-cleanup

JS Cleanup

ecommerce/static/oscar/js/refund_list.js

 $(document).ready(function () {
+    var $actions = $('[data-action=process-refund]');
+
     var processRefund = function (e) {
         var $btn = $(e.target),
-            refund_id = $btn.data('refund-id');
+            refund_id = $btn.data('refund-id'),
             decision = $btn.data('decision');
 
         // Disable button
@@ -17,8 +19,8 @@ $(document).ready(function () {
             headers: {'X-CSRFToken': $.cookie('csrftoken')}
         }).success(function (data) {
             $('tr[data-refund-id=' + refund_id + '] .refund-status').text(data.status);
-            addMessage('alert-success', 'icon-check-sign', 'Refund ' + refund_id + ' has been processed.');
-            $('[data-action=process-refund]').remove();
+            addMessage('alert-success', 'icon-check-sign', 'Refund #' + refund_id + ' has been processed.');
+            $actions.remove();
         }).fail(function (jqXHR, textStatus, errorThrown) {
             // NOTE (RFL): For an MVP, changing the displayed refund state on any error may be viable.
             // Ideally, the displayed refund state would only change if the refund were to enter an
@@ -38,5 +40,5 @@ $(document).ready(function () {
         });
     };
 
-    $('[data-action=process-refund]').click(processRefund);
+    $actions.click(processRefund);
 });