void do_start_element(const std::string& qName,
const std::string& namespaceURI,
const SAX::Attributes<std::string>& atts)
{
indent();
DOM::Element<std::string> elem = document().createElementNS(namespaceURI, qName);
current().appendChild(elem);
// attributes here
for(int i = 0; i < atts.getLength(); ++i)
elem.setAttributeNS(atts.getURI(i), atts.getQName(i), atts.getValue(i));
current_ = elem;
} // do_start_element
