CAS client configuration with MT4-PHP.

[Radha C.]

Hi,
 
We have CAS server of spring integrated and it is running in apache. We have
application in MovableType4 - PHP.
Is it possible to configure the MT4 authentication module to redirect to
external CAS server when the application recieves login request? 
It would be helpful if there is any document available for this.
 
Thanks in advance.