function flashButtonStateHandler(button, enabled) {

  if (button.match(/flash-prev-arrow/))
  {
    $('flash-prev-arrow').src = enabled ? "images/carousel/nav/flash_l_arrow.png" : "images/carousel/nav/flash_l_arrow_disable.png";
    if (enabled) {
      $('flash-prev-arrow').addClassName('enabled');
    }
    else
    {
      $('flash-prev-arrow').removeClassName('enabled');
    }
  }
  else
  { 
    $('flash-next-arrow').src = enabled ? "images/carousel/nav/flash_r_arrow.png" : "images/carousel/nav/flash_r_arrow_disable.png";
    if (enabled) {
      $('flash-next-arrow').addClassName('enabled');
    }
    else
    {
      $('flash-next-arrow').removeClassName('enabled');
    }
  }
}