<style>
.works p { display: none; }
</style>
<ul class="works">
<li>
<a class="work" href="javascript:void(0)">Main Level 1</a>
<p>Lorem Ipsum is simply dummy text of the printing and typesetting industry.</p>
</li>
<li>
<a class="work" href="javascript:void(0)">Main Level 2</a>
<p>Lorem Ipsum is simply dummy text of the printing and typesetting industry.</p>
</li>
<li>
<a class="work" href="javascript:void(0)">Main Level 3</a>
<p>Lorem Ipsum is simply dummy text of the printing and typesetting industry.</p>
</li>
<li>
<a class="work" href="javascript:void(0)">Main Level 4</a>
<p>Lorem Ipsum is simply dummy text of the printing and typesetting industry.</p>
</li>
</ul>
<!-- replace this with the latest jQuery version -->
<script src="http://code.jquery.com/jquery-1.4.4.js"></script>
<script type="text/javascript">
$().ready(function() {
$('.work').click(function() {
$('.works p').slideUp('fast');
if ($(this).siblings('p').is(":hidden")) $(this).siblings('p').slideDown();
return false;
});
});
</script>