Test Case Boilerplate

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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">
<ul>
  <li>menu 1
    <ul>
      <li>submenu 1<ul></ul></li>
      <li>submenu 2<ul></ul></li>
    </ul>
  </li>
</ul>

JavaScript

$('ul').sortable({connectWith: "ul"});