         if (instance == thumb)
         {
             thumb.addEventListener(KeyboardEvent.KEY_DOWN, 
-                                   thumb_keyboardHandler);
+                                   thumb_keyDownHandler);
         }
     }
     

     *  Right/Up arrows. The Home and End keys set the value
     *  to the min and max respectively.
     */
    protected function thumb_keyboardHandler(event:KeyboardEvent):void
    {
        // TODO: Provide a way to easily override the keyboard
        // behavior. This means having a callback in the subclasses

        if (instance == thumb)
        {
            thumb.removeEventListener(KeyboardEvent.KEY_DOWN, 
                                      thumb_keyDownHandler);
        }
    }

