* @param[in] obj the pointer to the evas object
* @param[in] event_info the pointer to the event information
*/
-void _back_btn_cb(void *data, Evas_Object * obj, void *event_info);
+Eina_Bool _back_btn_cb(void *data, Elm_Object_Item *it);
/**
* This function let the ug call it when click 'scan' button