code review by fei.hong: do merge huanbao codes

@@ -937,8 +937,8 @@ class ItemModel
         }
         if(isset($result['code']) && $result['code'] == 200 && !empty($result['data'])) {
             $bannerInfo = $result['data'];
-            if(!empty($bannerInfo['brandUrl'])) {
-                $bgImg = Images::getForceSourceUrl($bannerInfo['brandUrl']);
+            if(!empty($bannerInfo['bannerUrl'])) {
+                $bgImg = Images::getForceSourceUrl($bannerInfo['bannerUrl']);
             }
         } 
         //banner的logo