$firefoxx = WWW::Mechanize::Firefox->new( );
$firefoxx ->get("$seite");
$firefoxx -> form_with_fields ('user');
$firefoxx -> set_fields ("user" => "$benutzername");
$firefoxx -> form_with_fields ('pass');
$firefoxx -> set_fields ("pass" => "$passwort");
$firefoxx -> click_button (value =>'einloggen');