Sun Java System Web Server - on Browsers refresh/ back button eventterminate user session

I have a problem pls help me to solve this.

Requirement is :

I need to catch browser'srefresh back button event.

Actually I need to terminate his session/login

when user clicks on browser's refresh button

and send user on Login page something like banking application(e.g. ICICI Bank) when u logged in ICICI bank side in between if u click on browser's refreshit shows message "Your session terminated "something like that.

So i want same functinality after user click on Refresh terminate his session

[564 byte] By [SanjayKaradea] at [2007-11-26 23:30:57]