[jQuery] Problems with tabs and accordion menu together

[berio]

Hi all!
I am new using jQuery and I would like to ask you guys if somebody knows 
how to solve my problem. I supose that is very simple, but I don't know 
how to do it.

Here we go:

I am using tabs plugin to do a menu with three tabs. Inside of each tab 
there is an accordeon menu.
When I load the webpage the first tab is opened and the accordion menu 
that is inside of it works fine. However, when I click on the second 
tab, the accordion menu doesn't work, maybe because it was hiden.

Does somebody have some solution?

Here is the webpage where you can see the menu:

http://www.dev.escoitar.org/spip.php?page=mapa_xeral

And this is the jquery code:

<script type="text/javascript">
        $(document).ready(function(){
                $('#nav').Accordion({
                        header: '.head',
                        navigation: true
                });
                $('#container-11 .dalle').tabs();
        });
</script>



Thanks a lot

Berio