private XMLBuilder.Node writeSparqlUpdateResponseHeader() throws IOException {
  XMLBuilder.Node current=doc.root("html");
  addHtmlHeader(current,charset.name());
  return current;
}

private XMLBuilder . Node writeSparqlUpdateResponseHeader ( ) throws IOException { XMLBuilder . Node current = doc . root ( "html" ) ; addHtmlHeader ( current , charset . name ( ) ) ; return current ; }
write the header of the sparql update response .
