You can jump back two pages if you dynamically generate the form from a cgi script. What I do is leave the electronic equivalent of bread crumbs.
I put $ENV{'HTTP_REFERER'} into a hidden form field inside my dynamically generated form.
<form>
--------- stuff ----
<input type="hidden" name="backpage" value="$ENV{'HTTP_REFERER'}">
<input type="submit">
</form>
Now you are free to redirect them in the final, form processing, script to CGI::redirect($input{'backpage'}).
(Actually, I'm not so sure what CGI.pm puts it's input into, because I don't use it. But you get my meaning.)
oakbox
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