/**
  * @desc Get settings values (whether they are in a config.inc.php or in MySQL egw_alix_config)
  * @param string parameter   
  * @return mixed
  * @author TPI
  */
 protected function getConfig($parameter)
 {
     if (isset($this->m_tblConfig[$parameter])) {
         return $parameter;
     } else {
         if (!isset($this->m_settings)) {
             //load settings only once
             require_once 'class.boconfig.inc.php';
             $boconfig = new boconfig($this->m_tblConfig, $this->m_ctrl);
             $this->m_settings = $boconfig->getParameters();
         }
         if (isset($this->m_settings[$parameter])) {
             return $this->m_settings[$parameter]['value'];
         } else {
             $this->addLog("Unknown configuration parameter '{$parameter}'", ERROR);
         }
     }
 }