I am trying to create a tabs panel with 2 tabs. The problem is that the tabs are not created. Here is a link to the page:

http://develop.emotion-software.nl/admin/pages/edit/

I can't figure out why it's not working. I created a test file ( http://develop.emotion-software.nl/tab.html). That page does work. I probably have an error somewhere but I can not find out what I'm doing wrong. Does anyone know what the problem is? Below you can see the relevant HTML:

3. <script type="text/javascript" src="http://code.jquery.com/jquery-2.1.0.min.js"></script>
4. <script type="text/javascript" src="http://code.jquery.com/ui/1.10.4/jquery-ui.min.js"></script>
5. <form action="<?php echo $_SERVER['REQUEST_URI'] ?>" method="POST">
6. <div id="tabs">
7. <ul>
8.     <li><a href="#tabs-1">Slug</a></li>
9.     <li><a href="#tabs-2">Page</a></li>
10.   </ul>
11. <div id="tabs-1">
12. Titel: <input type="text" name="title" /><br />
13. Slug: <input type="text" name="slug" /><br />
14. Model: <input type="text" name="model" /><br />
15. View: <input type="text" name="view" /><br />
16. </div>
17. <div id="tabs-2">
18. Titel: <input type="text" name="title" /><br />
19. Beschrijving: <input type="text" name="description" /><br />
20. Keywords: <input type="text" name="keywords" /><br />
21. Tekst:<br />
22. <textarea name="text" cols="80" rows="15" class="ckeditor">abjioo</textarea><br />
23. </div>
24. </div>
25. </form>