So it checks the session cookie, says, oh, he's still here.

So, like, it would be a way of creating a session cookie.

Some pages use session cookies to remember your selections or preferences that you've already made when looking at information.

The session cookie is not persisted on your hard disk.

This data can be used instead of session cookies and is also cross-domain.

Some services on our Web site use "session cookies."

Some parts of our site use "session cookies", which are very small files placed on your hard drive by a website.

Or is there no way to do this that doesn't compromise the session cookie?

We use session cookies only in some places where you can transact business.

But my question is, how long should a session cookie last?