in reply to CGI App need direction

This is a typical case of Ajax call that update your form without actually submitting it.

I'll suggest you to use any data format like - xml/html/json/...etc. and use the web framework like MASON. Access all field data using JS and pass the values to mason component using ajax call (which is easiest by using jQuery.)

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Re^2: CGI App need direction
by Anonymous Monk on Oct 20, 2012 at 21:28 UTC

    An AJAX request might fit the OP's requirements, but given how he does not seem to know much of the subject (HTTP, CGI), adding javascript and the DOM to the soup will make the code quite a bit more complex while giving very little benefit. (Slightly smoother page update, and that's it.)

    (Not to mention that for an unfortunately large group of web developers, JS is the hammer they have and everything starts looking like a nail -- it is rife for abuse.)