     override protected function partRemoved(partName:String, instance:Object):void
     {
         super.partRemoved(partName, instance);
+
+		// Nulling of titleDisplay.accessibilityImplementation when the titleDisplay
+		// is removed is handled by the supermethod.
                                                 
         if (instance == moveArea)
             moveArea.removeEventListener(MouseEvent.MOUSE_DOWN, moveArea_mouseDownHandler);

     */
    override protected function initializeAccessibility():void
    {
        if (TitleWindow.createAccessibilityImplementation != null)
            TitleWindow.createAccessibilityImplementation(this);
    }

    /**

     */
    override protected function partAdded(partName:String, instance:Object) : void
    {
		if (instance == titleDisplay)
		{
			// Since the TitleWindowAccImpl must be attached to the TitleWindow's
			// titleDisplay instead of to the TitleWindow itself, we delay doing this
			// until we are sure there is a titleDisplay, and we do it again if it gets
			// re-added.
			// We also do it before calling the supermethod on Panel,
			// which creates a PanelAccImpl but only if an acc impl doesn't already exist.
			// In this way we avoid TitleWindow creating both a TitleWindowAccImpl
			// and a PanelAccImpl.
			if (TitleWindow.createAccessibilityImplementation != null)
				TitleWindow.createAccessibilityImplementation(this);
		}

		super.partAdded(partName, instance);
		
        if (instance == moveArea)
        {
            moveArea.addEventListener(MouseEvent.MOUSE_DOWN, moveArea_mouseDownHandler);
