public function writeHyperLink($hyperlink,
                                   $text,
                                   PHPRtfLite_Font $font = null,
                                   PHPRtfLite_ParFormat $parFormat = null,
                                   $convertTagsToRtf = true)
    {
        $element = new PHPRtfLite_Element_Hyperlink($this->_rtf, $text, $font, $parFormat);
        $element->setHyperlink($hyperlink);
        if ($convertTagsToRtf) {
            $element->setConvertTagsToRtf();
        }
        $this->_elements[] = $element;

        return $element;
    }