public function startXMLStream()
{
$this->sendXML('<?xml version="1.0"?>' . '<stream:stream xmlns:stream="http://etherx.jabber.org/streams" version="1.0" xmlns="jabber:client" to="' . $this->host . '" xml:lang="en" xmlns:xml="http://www.w3.org/XML/1998/namespace">');
}