加价购选择时 出现 loading

@@ -8,6 +8,7 @@ var $ = require('jquery'),
     lazyLoad = require('yoho.lazyload'),
     Handlebars = require('yoho.handlebars'),
     tip = require('../plugin/tip'),
+    loading = require('../plugin/loading'),
     chosePanel = require('./chose-panel');
 
 var panelTmpl,
@@ -27,6 +28,7 @@ $.get('/cart/index/giftinfoTpl', function(html) {
 });
 
 function getProductInfo(skn, promotionId) {
+    loading.showLoadingMask();
     $.get('/cart/index/giftinfo', {
         skn: skn,
         promotionId: promotionId
@@ -48,6 +50,8 @@ function getProductInfo(skn, promotionId) {
         }
     }).fail(function() {
         tip.show('网络错误');
+    }).always(function() {
+        loading.hideLoadingMask();
     });
 }