logging each cookie name failing in logs

If the cookie already exist on the client machine and if you want to expire that cookie, the cookie insert function will create a new cookie with the same name, etc and will be expired. But that leaves you with 2 cookies with the same name correct? One is not expired and the other expired. It should not allow 2 cookies with the same name, so what happens to the original cookie?

Any thoughts?

Thanks.

Regards,

TRX