public function addCData($name, $cdata)
    {
        $nameUtf8 = $this->_toUTF8($name);
        $node = $this->_SimpleXmlElement->addChild($nameUtf8);
        $domnode = dom_import_simplexml($node);
        $no = $domnode->ownerDocument;
        $domnode->appendChild($no->createCDATASection($cdata));

        return new SimpleXMLExtended($node, $this->_encoding);
    }