if (node instanceof helma.objectmodel.db.Node) handle = ((helma.objectmodel.db.Node) node).getHandle ();
if (node instanceof Node) handle = ((Node) node).getHandle ();
    public void updateNodeFromUser () {	node = user.getNode ();	// set node handle to wrapped node	if (node instanceof helma.objectmodel.db.Node)	    handle = ((helma.objectmodel.db.Node) node).getHandle ();	else	    handle = null;	    }	