If you are constrained thusly why not store the session id in the url rather than as a hidden field? If you are using POST for your data this should not involve a major change. Then refresh should work. 

http://yoursite.com/session.cgi?id=MD5hash

# in the cgi
if ( $ENV{'$QUERY_STRING'} =~ m/id=(.+)/ ) {
     my $session_id = $1;
     valid_id($session_id) ? continue_session($session_id) : new_sessi
+on();
} else {
     new_session();
}

[download]

cheers

tachyon

s&&rsenoyhcatreve&&&s&n.+t&"$'$`$\"$\&"&ee&&y&srve&&d&&print

In reply to Re: Refresh problem by tachyon
in thread Refresh problem by hotshot

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