Altenatively, you could use the '-override' flag, which emoves the stickiness and forces CGI.pm to always use the 'default' value. 
print $cgi->hidden(
        -name    => 'species',
        -default=> $species,
        -override => 1,
        );

[download]
Cheers, Ben.

In reply to Re: Can't modify variable received from CGI parameter by benn
in thread Can't modify variable received from CGI parameter by Anonymous Monk

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