when click ln a image next image come

html
<img src="img_pulpit.jpg" onclick="myFunction(this);" width="100" height="140">
<img src="img_pulpit2.jpg" onclick="myFunction(this);" width="100" height="140">

<script>
function myFunction(imgs) {
  var expandImg = document.getElementById("expandedImg");
  var imgText = document.getElementById("imgtext");
  expandImg.src = imgs.src;
  imgText.innerHTML = imgs.alt;
  expandImg.parentElement.style.display = "block";
}
</script>