62097 Auto Logout prompt

Avg Bid (USD)
Project Budget (USD)

Project Description:
Hi expert programmers,

I would need a simple script which can pop up a javascript box saying "DO YOU WANT TO CONTINUE USING THIS SESSION 'yes','no'" after the page HAS BEEN IDLE FOR 15 minutes. If the user click 'no', this script will kill of the session of the user..(therefore logging out). This page will be done is ASP, and preferrably the script i'm looking for should be in Javascript.
Guaranteed payment when the work is working under my own codings.

Thanks for reading.

Skills required:
Anything Goes, ASP, Javascript
About the employer:
Public Clarification Board
Bids are hidden by the project creator. Log in as the employer to view bids or to bid on this project.
You will not be able to bid on this project if you are not qualified in one of the job categories. To see your qualifications click here.