/**
  * Call generator directly
  * @private
  * @return string XML
  */
 function __getXML_Direct()
 {
     $pc = new PHP_Crossword($this->cols, $this->rows);
     $pc->setGroupID($this->groupid);
     $pc->setMaxWords($this->words);
     $pc->setMaxFullTries($this->max_tries);
     $pc->generate();
     $xml = $pc->getXML();
     unset($pc);
     return $xml;
 }