function _parse()
{
$this->serviceList = array();
$services = $this->parser->evalXPath('xrd:Service', $this->xrdNode);
foreach ($services as $node) {
$s = new Auth_Yadis_Service();
$s->element = $node;
$s->parser = $this->parser;
$priority = $s->getPriority();
if ($priority === null) {
$priority = SERVICES_YADIS_MAX_PRIORITY;
}
$this->_addService($priority, $s);
}
}