      *  and <code>valueToPosition()</code> methods.</p>
      *
      *  @return The size of the logical track. 
+     *  
+     *  @langversion 3.0
+     *  @playerversion Flash 10
+     *  @playerversion AIR 1.5
+     *  @productversion Flex 4
      */
     protected function get trackSize():Number
     {

     *  Enable (<code>true</code>) or disable (<code>false</code>) this component. 
     *  This property also enables and disables any of the 
     *  skin parts for this component.
     */
    override public function get enabled():Boolean
    {

     *  A skin part that defines a button
     *  that when  pressed sets the <code>value</code> property
     *  to the value corresponding with the current button position on the track.
     *  
     *  @langversion 3.0
     *  @playerversion Flash 10
     *  @playerversion AIR 1.5
     *  @productversion Flex 4
     */
    public var track:FxButton; 

