document.addEventListener("DOMContentLoaded", function () {
  document
    .getElementById("myCarousel")
    .addEventListener("slide.bs.carousel", function (event) {
      let nextSlide = event.relatedTarget.querySelector("img[data-src]");
      if (nextSlide != null) {
        nextSlide.setAttribute("src", nextSlide.getAttribute("data-src"));
        nextSlide.removeAttribute("data-src");
      }
    });
});