             <label for="output-xml">Output XML</label>
                    <textarea cols="50" rows="10" id="output-xml"></textarea>
                </td>
                <td>
                    <label for="postprocessed-xml">Postprocessed XML</label>
                    <textarea cols="50" rows="10" id="postprocessed-xml"></textarea>
                </td>
            </tr>
        </table>
    </body>
    <script>
        function transform(xslt, xml, params) {
            var processor = new XSLTProcess