function TestDues()
{
$due1 = new Dues();
$duesXML = $due1->setDOMDocument();
$due1->setUpDate();
$dueDOM = domxml_open_mem($duesXML);
$root = $dueDOM->document_element();
$dueXML = $root->dump_node($root->first_child());
$due1->parseDOMDocument($dueXML);
$dueXML = $due1->setDOMDocument();
echo $dueXML;
}