private function updateSettings()
 {
     //update prefs
     $asErrorsPrefs = array();
     try {
         $sLang = AnwEnv::_POST("lang", "");
         AnwCurrentSession::setLang($sLang);
         $nTimezone = AnwEnv::_POST("timezone", 0);
         AnwCurrentSession::setTimezone($nTimezone);
     } catch (AnwBadLangException $e) {
         $asErrorsPrefs[] = $this->g_("err_badlang");
     } catch (AnwBadTimezoneException $e) {
         $asErrorsPrefs[] = $this->g_("err_badtimezone");
     } catch (AnwException $e) {
         $asErrorsPrefs[] = $this->g_("err_unkn");
     }
     $asErrorsAccount = array();
     if (AnwCurrentSession::isLoggedIn() && AnwUsers::isDriverInternal()) {
         //update account
         try {
             //displayname change requested ?
             if (self::globalCfgUsersChangeDisplayname()) {
                 $sDisplayname = AnwEnv::_POST("displayname", "");
                 if (AnwCurrentSession::getUser()->getDisplayName() != $sDisplayname) {
                     AnwCurrentSession::getUser()->changeDisplayName($sDisplayname);
                 }
             }
             //email change requested ?
             $sEmail = AnwEnv::_POST("email", "");
             if (AnwCurrentSession::getUser()->getEmail() != $sEmail) {
                 AnwCurrentSession::getUser()->changeEmail($sEmail);
             }
             //password change requested ?
             $sNewPassword = AnwEnv::_POST("newpassword");
             $sNewPasswordRepeat = AnwEnv::_POST("newpassword_repeat");
             $sCurrentPassword = AnwEnv::_POST("currentpassword", "");
             if ($sNewPassword) {
                 if ($sNewPassword == $sNewPasswordRepeat) {
                     try {
                         //authenticate with current password
                         AnwCurrentSession::getUser()->authenticate($sCurrentPassword);
                         //authentication ok, change the password
                         try {
                             AnwCurrentSession::getUser()->changePassword($sNewPassword);
                         } catch (AnwBadPasswordException $e) {
                             $asErrorsAccount[] = $this->t_("err_badnewpassword");
                         }
                     } catch (AnwBadPasswordException $e) {
                         $asErrorsAccount[] = $this->g_("err_incorrectpassword");
                     } catch (AnwAuthException $e) {
                         $asErrorsAccount[] = $this->g_("err_incorrectpassword");
                     }
                 } else {
                     $asErrorsAccount[] = $this->g_("err_passwordsmatch");
                 }
             }
         } catch (AnwDisplayNameAlreadyTakenException $e) {
             $asErrorsAccount[] = $this->g_("err_displaynamealreadytaken");
         } catch (AnwBadDisplayNameException $e) {
             $asErrorsAccount[] = $this->g_("err_baddisplayname");
         } catch (AnwEmailAlreadyTakenException $e) {
             $asErrorsAccount[] = $this->g_("err_emailalreadytaken");
         } catch (AnwBadEmailException $e) {
             $asErrorsAccount[] = $this->g_("err_bademail");
         } catch (AnwException $e) {
             $asErrorsAccount[] = $this->g_("err_unkn");
         }
     }
     if (count($asErrorsPrefs) > 0 || count($asErrorsAccount) > 0) {
         $this->formSettings(false, $asErrorsPrefs, $asErrorsAccount);
     } else {
         AnwUtils::redirect($this->linkMe(array("done" => 1)));
     }
 }