      * 
      *  @param thumbPos A number representing the new position of the thumb
      *  button in the control.
+     *  
+     *  @langversion 3.0
+     *  @playerversion Flash 10
+     *  @playerversion AIR 1.5
+     *  @productversion Flex 4
      */
     override protected function positionThumb(thumbPos:Number):void
     {

     * 
     *  @param value The new value of the <code>value</code> property. 
     *  @see viewport
     */
    override protected function setValue(value:Number):void
    {


    /**
     *  Constructor. 
     *  
     *  @langversion 3.0
     *  @playerversion Flash 10
     *  @playerversion AIR 1.5
     *  @productversion Flex 4
     */
    public function FxHScrollBar()
    {
