function inner_html()
{
$inner_html = '';
foreach ($this->node->childNodes as $child) {
$tmp_dom = new \DOMDocument();
$tmp_dom->appendChild($tmp_dom->importNode($child, true));
$inner_html .= trim($tmp_dom->saveXML());
}
// Kludgey hack to remove doctype spec
$inner_html = preg_replace('#^\\s*<\\?xml(\\s.*)?\\?>\\s*#', '', $inner_html);
return $inner_html;
}