use CGI;
$query = new CGI;

sub logout {
    $cookie_expires = "-1s";
    &cookie_create;
    print $query->redirect( -uri => $redirect_to, -cookie => $cookie );
}

sub cookie_create {
    $cookie = $query->cookie(-name => $cookie_name,
                              -expires => $cookie_expires,
                              -domain  => $cookie_domain,
                              -path    => $cookie_path,
                              -value=>{ username => $username,
                              		password => crypt($password, $username) }
                               );
}