  *  <p>Although you can use the VScrollBar control as a stand-alone control,
  *  you usually combine it as part of another group of components to
  *  provide scrolling functionality.</p>
- * 
  */
 public class VScrollBar extends ScrollBar
 {

    //--------------------------------------------------------------------------

    /**
     * Position the thumb button according to the given thumbPos parameter,
     * relative to the current y location of the track in the scrollbar control.
     * 
     * @param thumbPos A number representing the new position of the thumb
     * button in the control.
     */
    override protected function positionThumb(thumbPos:Number):void
    {

            return 0;
    }
    
    //--------------------------------------------------------------------------
    //
    // Methods
