private function _initialize()
    {
        $params = $this->getParameters();
        if ($params !== null) {
            for ($i = 0, $_i = count($params); $i < $_i; $i++) {
                if ($params[$i]->getType() === null) {
                    if ($params[$i]->getName() === "style") {
                        $this->setStyle($params[$i]->getValue());
                    }
                } elseif ($params[$i]->getType() == "param") {
                    $xp = new XsltParam();
                    $xp->setName($params[$i]->getName());
                    $xp->setExpression($params[$i]->getValue());
                    $this->xsltParams[] = $xp;
                }
            }
        }
    }