  *  @playerversion AIR 1.5
  *  @productversion Flex 4
  */
-public class ScrollBar extends TrackBase
+public class ScrollBarBase extends TrackBase
 {
     include "../../core/Version.as";
 

 *  controls.</p> 
 * 
 *  <p>A scroll bar consists of a track, a variable-size scroll thumb, and 
 *  two optional arrow buttons. The ScrollBar class uses four parameters 
 *  to calculate its display state:</p>
 *
 *  <ul>

    
    /**
     * @private
     * This variable tracks whether we are currently stepping the ScrollBarBase
     */
    private var isStepping:Boolean;

