##

 $mech->form_number(1);
    $mech->set_fields ( 'userid' => $user) ;
    $mech->form_number(2);
    $mech->set_fields('password' => $password);
    $mech->form_number(1);
    $mech->submit_form(); #dont' work
    $mech->click(); #don't work
    $mech->follow_link( text_regex => qr/Login/i ); #don't work
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