How to specify a context-name / web-app-name in Jboss

Hello!

I use Jboss 4.3.
When I deploy my war file my_app.war, then the url gets:
http://127.0.0.1:8080/my_app/...

Now I would like it to be http://127.0.0.1:8080/the_customer_company_name/...

But I want the name of teh war file remain my_app.war.

I thought it would be possible to specify this inside web.xml but I can not found it.

All commenst is most welcome.

Best regards
Fredrik