<script type="text/javascript" src="path/to/jquery.js"></script>
<script type="text/javascript" src="path/to/jcarousellite.js"></script>

<div>
<ul>
<li><img src="1.jpg" alt="" width="100" height="100" ></li>
<li><img src="2.jpg" alt="" width="100" height="100" ></li>
<li><img src="3.jpg" alt="" width="100" height="100" ></li>
<li><img src="4.jpg" alt="" width="100" height="100" ></li>
</ul>
</div>

$(function() {
$(".default .jCarouselLite").jCarouselLite({
btnNext: ".default .next",
btnPrev: ".default .prev"
});
});