      *  assigned.
      *  
      *  @langversion 3.0
-     *  @playerversion Flash 9
-     *  @playerversion AIR 1.1
-     *  @productversion Flex 3
+     *  @playerversion Flash 10
+     *  @playerversion AIR 2.5
+     *  @productversion Flex 4.5
      */
     private function startTrackingUpdates(item:Object):void
     {

     *  source is assigned.
     *  
     *  @langversion 3.0
     *  @playerversion Flash 9
     *  @playerversion AIR 1.1
     *  @productversion Flex 3
     */
    private function stopTrackingUpdates(item:Object):void
    {

     */ 
    override mx_internal function get exitApplicationOnBackKey():Boolean
    {
        if (activeNavigator)
            return activeNavigator.exitApplicationOnBackKey;

        return super.exitApplicationOnBackKey;
    }
    
    //----------------------------------
