javascript.js

let slideIndex = 0;
const slides = document.getElementsByClassName("slide");

function showSlide(n) {
  if (n < 0) {
    slideIndex = slides.length - 1;
  } else if (n >= slides.length) {
    slideIndex = 0;
  }

  for (let i = 0; i < slides.length; i++) {
    slides[i].style.display = "none";
  }

  slides[slideIndex].style.display = "block";
}

function nextSlide() {
  showSlide(slideIndex + 1);
}

function prevSlide() {
  showSlide(slideIndex - 1);
}

setInterval(nextSlide, 5000);

document.querySelector(".next").addEventListener("click", nextSlide);
document.querySelector(".prev").addEventListener("click", prevSlide);

function scrollToTop() {
  window.scrollTo({
    top: 0,
    behavior: "smooth"
  });
}