<script>
$(".lightbox_item").eq(0).addClass("active");

$(".lightbox_arrow.next").on("click", function () {
  let activeItem = $(".lightbox_item.active");
  if (activeItem.next().length > 0) {
    activeItem.next().addClass("active");
  } else {
    $(".lightbox_item").eq(0).addClass("active");
  }
  activeItem.removeClass("active");
});

$(".lightbox_arrow.prev").on("click", function () {
  let activeItem = $(".lightbox_item.active");
  if (activeItem.prev().length > 0) {
    activeItem.prev().addClass("active");
  } else {
    $(".lightbox_item").last().addClass("active");
  }
  activeItem.removeClass("active");
});
</script>