public function CloneInstance()
	{
		// Clone in this sense means be able to have a different current position so creating a new
		// DOMXPathNavigator instance should be sufficient. There is no need to clone the current node.
		return is_null( $this->domNode )
			? $this
			: new DOMXPathNavigator( $this->domNode, $this->nsManager, $this->nsTable );
	}