fix refer redirect

@@ -22,7 +22,7 @@ $(function() {
             },
             success: function(ret) {
                 if (ret.code === 200) {
-                    window.location.href = window.queryString.refer || '//m.yohobuy.com';
+                    window.location.href = decodeURIComponent(window.queryString.refer) || '//m.yohobuy.com';
                 } else {
                     imgCheck.refresh();
                 }