  *  has changed for any reason.
  *
  *  @eventType mx.events.FileEvent.DIRECTORY_CHANGE
+ *  
+ *  @langversion 3.0
+ *  @playerversion AIR 1.1
+ *  @productversion Flex 3
  */
 [Event(name="directoryChange", type="mx.events.FileEvent")]
 

     *
     *  @see #backHistory
     *  @see #navigateBack()
     */
    public function get canNavigateBack():Boolean
    {

     *      click="fileSystemViewer.navigateDown();"/&gt;</pre>
     *
     *  @see #canNavigateDown
     *  
     *  @langversion 3.0
     *  @playerversion AIR 1.1
     *  @productversion Flex 3
     */
    public function navigateDown():void
    {
