购物车选择框加载优化

@@ -96,17 +96,21 @@ $('.cart-goods').on('touchstart', '.checkbox', function() {
  * @return false or undefined
  *
  */
-function showEditPannelWithSku(html, id, isSelected, isEditNum) {
-    if (html.length < 2) {
+function showEditPannelWithSku(html, id, isSelected, isEditNum, skn) {
+    var $html = $(html);
+
+    if (!$html.hasClass('chose-panel')) {
         tip.show('出错啦！');
         return false;
     }
 
+    // 记录成功加载的选择框
+    previousEditSkn = skn;
+
     //删掉页面上原有的pannel
     chosePanel.remove();
 
-    $(html).appendTo('#mainCart');
-
+    $html.appendTo('#mainCart');
 
     chosePanel.init();
     chosePanel.setEditModeWithSknId(id, isSelected);
@@ -141,9 +145,6 @@ $('.icon-edit').on('touchstart', function(e) {
         return;
     }
 
-    previousEditSkn = skn;
-
-
     $checkBox = $this.closest('.info').siblings('.checkbox');
     $tag = $this.closest('.deps').siblings('.few-tag');
 
@@ -157,7 +158,6 @@ $('.icon-edit').on('touchstart', function(e) {
 
     loading.showLoadingMask();
 
-
     $.ajax({
         url: '/cart/index/goodinfo',
         data: {
@@ -165,7 +165,7 @@ $('.icon-edit').on('touchstart', function(e) {
             buy_num: count
         },
         success: function(res) {
-            showEditPannelWithSku(res, id, $checkBox.hasClass('icon-cb-checked'), canEditNum);
+            showEditPannelWithSku(res, id, $checkBox.hasClass('icon-cb-checked'), canEditNum, skn);
         },
         error: function() {
             tip.show('网络异常');