$( function () {
  $("div#slideleft, div#slideright").hover( function () {
      $side = $(this).attr('id');
    $timer = setInterval( function () {
      if($side == 'slideleft') {
        $scroll = $("div#thumbnails").scrollLeft() - 10;
      } else {
        $scroll = $("div#thumbnails").scrollLeft() + 10;
      }
      $("div#thumbnails").scrollLeft( $scroll );
    }, 50);
  }, function () {
    clearInterval( $timer );
  });
  
  $("div#thumbnails img").css('cursor', 'pointer').click( function () {
    $bigImageSrc = $(this).attr('src');
    
    if($("div#big-image img").attr('src') == $bigImageSrc)
      return;
    
    $("div#big-image img").fadeOut(100, function () {
      $(this).attr('src', $bigImageSrc).fadeIn(100);
    });
  });
});