function generateTags($sessionId, $zoneId, $codeType, $aParams, &$generatedTag)
 {
     if ($this->verifySession($sessionId)) {
         $result = $this->_dllZone->generateTags($zoneId, $codeType, $aParams);
         if ($this->_validateResult($result)) {
             $generatedTag = $result;
             return true;
         }
     }
     return false;
 }