  *  The NavigationStack class is a data structure that is internally used by 
  *  ViewNavigator to track the current set of views that are being managed 
  *  by the navigator.
+ *
+ *  @see spark.components.ViewNavigator
  *  
  *  @langversion 3.0
- *  @playerversion Flash 10.1
+ *  @playerversion Flash 10
  *  @playerversion AIR 2.5
  *  @productversion Flex 4.5
  */

    // FIXME (chiedozi): Should return things...
    /**
     *  Adds a view to the top of the navigation stack.
     * 
     *  @param viewClass The class of the View to create.
     *  @param data The data object to pass to the view when it is created
     *  @param context The context identifier to pass to the view when created
     *  
     *  @return The data structure that represents the current view.
     * 

    //----------------------------------
    
    /**
     *  Returns the object at the top of the stack.  
     *  If the stack is empty, this property is null.
     * 
     *  @default null
     *  
