function checkPassword($id_user, $password)
 {
     $query = $this->db->get_where($this->table, array('id' => $id_user, 'password' => md5($password)));
     if ($query === FALSE) {
         Helper_Log::write($this->messageError(__FUNCTION__, FALSE), Helper_Log::LOG_DB);
         throw new Exception("Problema ejecución en Base de Datos, ver log de errores. Consulte con Sistemas");
     }
     $row = $query->row_array();
     $eUser = new eUser();
     $eUser->parseRow($row);
     return $eUser->isEmpty() ? FALSE : TRUE;
 }