integrate opencms and cas

[Inigo]

Hello:
  Well, first of all hello everybody. This is my first post in this 
mailing list. I have a question, has any of you any experience 
integrating opencms and cas? I have just deployed the CAS server in 
tomcat, but I have no clue about what to do next, although my guess is I 
have to use the jsp client to change the default opencms authentication 
form with the cas one.

    Thanks in advance.