Bootstrap Tree Menu, Collapsible Example
HTML
<link class="cssdeck" rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/2.3.1/css/bootstrap.min.css">
<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/2.3.1/css/bootstrap-responsive.min.css" class="cssdeck">
<div class="well" style="width:300px; padding: 8px 0;">
<div style="overflow-y: scroll; overflow-x: hidden; height: 500px;">
<ul class="nav nav-list">
<li><label class="tree-toggler nav-header">Header 1</label>
<ul class="nav nav-list tree">
<li><a href="#">Link</a></li>
<li><a href="#">Link</a></li>
<li><label class="tree-toggler nav-header">Header 1.1</label>
<ul class="nav nav-list tree">
<li><a href="#">Link</a></li>
<li><a href="#">Link</a></li>
<li><label class="tree-toggler nav-header">Header 1.1.1</label>
<ul class="nav nav-list tree">
<li><a href="#">Link</a></li>
<li><a href="#">Link</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
<li class="divider"></li>
<li><label class="tree-toggler nav-header">Header 2</label>
<ul class="nav nav-list tree">
<li><a href="#">Link</a></li>
<li><a href="#">Link</a></li>
<li><label class="tree-toggler nav-header">Header 2.1</label>
<ul class="nav nav-list tree">
<li><a href="#">Link</a></li>
<li><a href="#">Link</a></li>
<li><label class="tree-toggler nav-header">Header 2.1.1</label>
<ul class="nav nav-list tree">
<li><a href="#">Link</a></li>
<li><a href="#">Link</a></li>
</ul>
</li>
</ul>
</li>
<li><label class="tree-toggler nav-header">Header 2.2</label>
<ul class="nav nav-list tree">
<li><a href="#">Link</a></li>
<li><a href="#">Link</a></li>
<li><label class="tree-toggler nav-header">Header 2.2.1</label>
<ul class="nav nav-list tree">
<li><a href="#">Link</a></li>
<li><a href="#">Link</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
</div>
<script class="cssdeck" src="//cdnjs.cloudflare.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script class="cssdeck" src="//cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/2.3.1/js/bootstrap.min.js"></script>
JAVASCRIPT
$(document).ready(function () {
$('label.tree-toggler').click(function () {
$(this).parent().children('ul.tree').toggle(300);
});
});