DEMO: http://carlosmarch.es/navside/
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
<script src="assets/js/jquery.easing.min.js" type="text/javascript"></script>
<script src="assets/js/jquery.navside.js" type="text/javascript"></script>
<link href="assets/css/navside.css" rel="stylesheet" type="text/css" />
<nav id="navside">
<ul>
<li><a href="#">Home</a></li>
<li><a href="#">Page-1</a></li>
<li><a href="#">Page-2</a></li>
</ul>
</nav>
$("#navside").navside({
position : 'left', // options for Position: 'left' or 'right'. Default is 'right'
scroll : 'fixed' // options for Scroll: 'hidden' or 'fixed'. Default is 'hidden'
});