how can I tell right then if the cookie was saved on the computer?

Browsers might refuse to accept persistent cookies, but most will accept "session" cookies. To set a session cookie, don't specify an -expires date. (But do specify a -domain.)

A common trick for determining wether a browser accepts persistent cookies is to do the following:

• If a persisent cookie is detected, succeed.
• If no cookies are detected, try to set both a session cookie and a persistent cookie.
• If a session cookie is detected, but no persistent cookie, fail.

See merlyn's article Basic Cookie Management for more detail.

Also, it's not clear from your post whether $cpassword is encrypted or note. It's unwise to store an unencrypted password in a cookie.

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