login-config in web.xml & redirection

Hi,

I have a JSF web application and I use the JAAS mechanism to log in.
I have a simple index page which is the first page of the application:

In my web.xml I redirect to the login page in case of unsecured entrance:

So the scenario is this:
1) The user opens the application URL (http://localhost:8080/EM/).
2) The index.jsp is loaded and redirects to device.jsp.
3) Because we didn't go through the login procedure it brings us to the login.jsp.
4) In case of success it automatically returns to the device.jsp page.

This causes the first pages of the application (in my case the the login.jsp before login and the device.jsp after login) to appear without its full URL path.
When I go on with the navigation in the application, it changes and I get the full path (even if I go back to the device page).
But before & after login the login & device pages appears only with the application's URL (e.g.http://localhost:8080/EM/).

This causes my problems when trying to use images, js files etc...)

How can I force a "redirect" and get the full path (e.g. http://localhost:8080/EM/faces/html/QOD_GW/device.jsp, http://localhost:8080/EM/faces/html/common/login.jsp)??

Thanks a lot,
Efrat