Logged In: NO

Well more data is that the problem is related with this code:
<script type="text/javascript" src="/webtest/app?digest=b190e8e8797dfda62ef63c45592706e8&amp;service=asset&amp;path=%2FJSCookMenu-mod.js"></script>
<script type="text/javascript" src="/webtest/app?digest=f30db47cebfa7f91c5be134f923949ef&amp;service=asset&amp;path=%2FLinkDecorator.js"></script>
<script type="text/javascript" src="/webtest/app?digest=a70eeb758ec04c69dcc4b45f4a31c8da&amp;service=asset&amp;path=%2Feffect.js"></script>
<script type="text/javascript"><!--
var NPMenuTest_menuPpal_divId = new Object();
// --></script>

This code appears on my test project, and wokrs fine on Firefox, but in the real project this code doesn't appear and in firefox this has a a consecuence that part of the components dissapear. If I put this code via hard code then in the production project works (but this is put before the doctype) in other site (as is put in the test project) I cannot because I use a Block and put that at the very begining or after menu and doesn´t work.

On IE it works, but when I put the ausent code then appear the dojo tabs but not the components inside, so If works in firefox doesn´t on IE and viceversa.