Custom image slider vertical 3 images only

Auto image slider vertical with thumbnail

var firstSlides = $("#slideshow-list li"),
     secondSlides = $("#image-list li"),
     nbSlides = firstSlides.length,
     slideTime = 3000,
     nextSlide = 0,
     timer;

 function slideshow() {
     secondSlides.eq(nextSlide).addClass('active').siblings().removeClass('active');
     firstSlides.eq(nextSlide).fadeIn().delay(2000).fadeOut();
     nextSlide = (nextSlide + 1) % nbSlides;
     timer = setTimeout(slideshow, slideTime);
 }

 slideshow();

 $('#image-list li').click(function () {
     clearTimeout(timer);
     var clickIndex = $(this).index()
     $('#slideshow-list li').eq(clickIndex).show().siblings().hide();
 });

 $('#image-list').mouseleave(function (e) {
     $('#slideshow-list li').hide();
     clearTimeout(timer);
     setTimeout(slideshow(), 2000);
 });

DEMO