优化skn获取代码

@@ -11,7 +11,7 @@ var $ = require('jquery'),
 
 var productId = $('#productId').val();
 
-var skn = $('#preferenceUrl').val().split('?')[1].split('&')[0].split('=')[1],
+var skn = $('#productSkn').val(),
     productCode = $('#limitProductCode').val();
 
 $('#likeBtn').on('touchstart', function() {

@@ -177,6 +177,8 @@
     <input id="preferenceUrl" type="hidden" value="{{preferenceUrl}}">
     {{/if}}
 
+    <input id="productSkn" type="hidden" value="{{productSkn}}">
+
     {{#loginUrl}}
     <input type="hidden" name="loginUrl" id="loginUrl" value="{{.}}">
     {{/loginUrl}}

@@ -169,6 +169,8 @@ class DetailModel
             $result['preferenceUrl'] = Helpers::url('/product/detail/preference', array('productSkn' => $baseInfo['erpProductId'], 'brandId' => $baseInfo['brand']['id']), '');
         }
 
+        $result['productSkn'] = $baseInfo['erpProductId'];
+
         // 商品信息
         if (!empty($baseInfo['goodsList'])) {
             $colorGroup = array();