Jquery accordion max # of sections?

I have a jquery accordion that is working correctly on this page

http://www.kmultim.com/SRPF_2aout_2012_panier/index.php?idChoix=Outils_pedagogique

However when i add more then 8 section , my layout and the jquery of the last section doesn’twork.
You can see the problem here
http://www.kmultim.com/SRPF_2aout_2012_panier_bug/index.php?idChoix=Outils_pedagogique"

Now on this version , you can see that the added section of the Jquery accordion doesn’t work properly and the layout of the page is messed up.
I don’t think the html code is the problem . I tried switching it with another section code and its working . It only doesn’t work when they are more then 8 sections.

Is there a maximum section number ?
Any idea how to fix this problem ?

http://www.kmultim.com/SRPF_2aout_2012_panier_bug/css/custom-theme/jquery-ui-1.8.22.custom.css // jquery css
http://www.kmultim.com/SRPF_2aout_2012_panier_bug/css/fr/default.css //default css file

Found the problem. There was a lone </div> tag . NetBean IDE really helps :).