protected function createAccessDOMElement( DOMDocument $domDocument, eZContentObjectTreeNode $node )
    {
        $accessElement = $domDocument->createElement( 'AccessRights' );
        $accessElement->setAttribute( 'canRead', $node->attribute( 'can_read' ) ? '1' : '0' );
        $accessElement->setAttribute( 'canEdit', $node->attribute( 'can_edit' ) ? '1' : '0' );
        $accessElement->setAttribute( 'canCreate', $node->attribute( 'can_create' ) ? '1' : '0' );
        return $accessElement;
    }