Hi Sherwin,
That seems like a solution that could have unwanted side effects. Since the timer is only reset by reloading the page, what happens if someone is editing an article for a very long time? The contents of the editor are updating but thats in a frame and is not reloading the outer page. If the user doesn't save his work frequently he could lose it as soon as you log him out.
On another note, yesterday I implemented an option if you want to remove the Remember Me from the login page, you can set AllowPersistentLoginCookie to false in Web.config
Best,
Joe