I have a website that uses the ASP.NET membership model for security. While it works fine for the most part, I'm having trouble figuring out how to handle the case where the user is logged in but idle for a length of time. When this happens, they are automatically logged out of the system but the client shows no sign of this until the user tries to do something that posts back to the server. My question is in 2 parts:
1. How do I set the length of the timeout interval?