  *  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 
+ *  two optional arrow buttons. The ScrollBarBase class uses four parameters 
  *  to calculate its display state:</p>
  *
  *  <ul>

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


 *
 *  @mxml
 *
 *  <p>The <code>&lt;s:ScrollBarBase&gt;</code> tag inherits all of the tag 
 *  attributes of its superclass and adds the following tag attributes:</p>
 *
 *  <pre>
 *  &lt;s:ScrollBarBase
 *    <strong>Properties</strong>
 *    pageSize="20"
 *    snapInterval=""
