make prefs.js dinamic. This is made to be able to test file upload in zelenium...

make prefs.js dinamic. This is made to be able to test file upload in zelenium tests : url have to be dinamic. Now it's a string in runFunctionTest.py so prefs.js file is not needed anymore.


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@23930 20353a03-c40f-0410-a6d1-a30d3c3de9de