function &evaluate($expression, $contextnode = NULL)
{
$node = NULL;
if ($GLOBALS['xmlv'] == XMLV4) {
if ($contextnode === NULL) {
$node = $this->xpath->xpath_eval($expression);
} else {
$node = $this->xpath->xpath_eval($expression, $contextnode->node);
}
} else {
if ($contextnode === NULL) {
$node = $this->xpath->evaluate($expression);
} else {
$node = $this->xpath->evaluate($expression, $contextnode->node);
}
}
$nodeObj = DomNode::createDDomObject($node);
return $nodeObj;
}
