      */ 
     private function setupNavigator(navigator:ViewNavigatorBase):void
     {
-        navigator.parentNavigator = this;
+        navigator.setParentNavigator(this);
         navigator.visible = false;
 
         // All navigators should be inactive when initialized.  The proper

    {
        var animate:Animate = new Animate();
        animate.target = tabBar;
        animate.duration = getStyle("animationDuration");
        animate.motionPaths = new Vector.<MotionPath>();
        animate.motionPaths.push(new SimpleMotionPath("y", props.start.y, props.end.y));
        

 *  TabbedViewNavigator changes.
 */
[Event(name="collectionChange", type="mx.events.CollectionEvent")]

/**
 *  Dispatched when the navigator's selected index has changed.  When
