Auto close confirm alert

Hello sir,
In my application for security reason i was set the session countdown timer, After the session completed i have triggered the confirm message
(ok | cancel).if user click ok means session is continued or cancel means application is logged out. In this scenerio i want to close the confirm message box automatically after 10 seconds.How can i do this ,can some one help to solve this issue quickly.

Regards,
M.Mageswaran

re: Auto close confirm alert

This won't be possible with the default confirm() method, but you can create your own version using DHTML which you can control.