function getClass()
 {
     $sClass = xajaxControl::getClass();
     if (0 < count($this->aChildren) && '%flow' == $sClass) {
         return $this->getContentClass();
     } else {
         if (0 == count($this->aChildren) || '%inline' == $sClass || '%block' == $sClass) {
             return $sClass;
         }
     }
     $objLanguageManager =& xajaxLanguageManager::getInstance();
     trigger_error($objLanguageManager->getText('XJXCTL:ICERR:01') . $this->backtrace(), E_USER_ERROR);
 }