Test Case Boilerplate
Fork this way...
HTML
<script src="http://code.jquery.com/ui/jquery-ui-git.js"></script>
<link rel="stylesheet" href="http://code.jquery.com/ui/jquery-ui-git.css">
<!DOCTYPE html>
<html>
<head>
<title>Sortable Test</title>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
</head>
<body>
<ul class="navigation">
<li>1 not link <a href="#content-1">link</a></li>
<li>2 not link <a href="#content-2">link</a></li>
<li>3 not link <a href="#content-3">link</a></li>
<li>4 not link <a href="#content-4">link</a></li>
<li>5 not link <a href="#content-5">link</a></li>
<li>6 not link <a href="#content-6">link</a></li>
</ul>
</body>
</html>
JavaScript
$(function(){
$('.navigation').sortable({
delay: 100,
distance: 5
});
});