To continue using $formValues as you were, you could 
use CGI 'param';
my %formValues = map { $_ => scalar param($_) } param;

[download]
You really shouldn't embed variables in your SQL queries, this can lead to SQL injection attacks ( http://xkcd.com/327/, http://bobby-tables.com/). If you insist on using $dbh->do you should use $dbh->quote like 

$dbh->do(
    sprintf "Insert into sell values (%s)",
    join ' , ', map { $dbh->quote($_) }
      $tid,
    $formValues{'salesperson'},
    $clid,
    $formValues{'comid'},
    $formValues{'ps'},
    $formValues{'ds'},
);

[download]
See DBI recipes

In reply to Re^5: unsupported REQUEST_METHOD? by Anonymous Monk
in thread unsupported REQUEST_METHOD? by jtm62

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