void startScrolling(){
  if (log.isLoggable(PlatformLogger.Level.FINER)) {
    log.finer("Start scrolling on " + this);
  }
  scroll();
  if (scroller == null) {
    scroller=new XScrollRepeater(this);
  }
 else {
    scroller.setScrollbar(this);
  }
  scroller.start();
}

void startScrolling ( ) { if ( log . isLoggable ( PlatformLogger . Level . FINER ) ) { log . finer ( "Start scrolling on " + this ) ; } scroll ( ) ; if ( scroller == null ) { scroller = new XScrollRepeater ( this ) ; } else { scroller . setScrollbar ( this ) ; } scroller . start ( ) ; }
tell the scroller to start scrolling .
