fix repeat name

@@ -8,12 +8,12 @@ var baseInfoEdit={
     edit:null,
     actionUrl:"/promotionInfo/update",
     load:function(config){
-        var edit= new edit("#tab_body",{});
-        this.edit=edit;
+        var _e= new edit("#tab_body",{});
+        this.edit=_e;
         if(config){
             this.promotionId=config.promotionId
         }
-        edit.init();
+        _e.init();
         this.bindEvent();
     },
     bindEvent:function(){