LADYX,
<!DOCTYPE html>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
<style type="text/css">
.div,
.active {
display: block;
position: absolute;
top: 0;
left: 0;
width: 50%;
height: 50vh;
background-image: url('http://www.masini.ro/imagini/galerie/8863/ferrari-599-gtb-fiorano-coupe-2010/ferrari-599-gtb-fiorano-coupe-2010_0_large.jpeg');
background-size: cover;
background-repeat: no-repeat;
background-position: center bottom;
z-index: -1;
}
.button{
z-index: 10;
}
</style>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script>
$(function() {
var grounds = ['http://www.masini.ro/imagini/galerie/8863/ferrari-599-gtb-fiorano-coupe-2010/ferrari-599-gtb-fiorano-coupe-2010_0_large.jpeg',
'https://i.pinimg.com/736x/ad/57/de/ad57de484686d3ea4dd42f4963608f09--ferrari-scuderia-ferrari-f.jpg',
'https://www.torquenews.com/sites/default/files/image-1/%5Btitle-raw%5D/maserati_granturismo.jpg'];
var index = 0;
var t = 3;
var len = grounds.length;
var div = $('.div');
(function setBackgroundImage()
{
!document.querySelector('.active') || div.css({'background-image': `url(${grounds[++index % len]})`});
window.setTimeout(setBackgroundImage, t * 1000)
})()
$('.button').click(function(){
div.toggleClass('active');
});
});
</script>
</head>
<body>
<button class="button">Кнопка</button>
<div class="div"></div>
</body>
</html>
