Fatal issue with javascript

System hangs and turn this unusable.

Code in question is the following:

<script type="text/javascript" src="//home/usertest/domaintest/ficheiros/languages/pt-pt_ca194e9c5842a160eafd29ece4acc98f.js?p"></script>

If you don't put the files directory on the most usual place -- in fact I use a dir outside the web dir -- the system outputs something that it shouldn't.

All external files are in /home/usertest/domaintest/ficheiros/
Web accessible are in /home/usertest/domaintest/www/

Or you manage to use your own directory where to create the js file OR you use the same method that Drupal has configured in a particular site to return non-web acessible files.