sub start_it
{
    my $irc = new Net::IRC;
    my $conn = $irc->newconn
    (
        Server 		=> shift || $server,
        Port		=> shift || $port,
        Nick		=> $botnick,
        Password        => $pass,
        Ircname		=> 'My IRC Bot',
        Username	=> $botnick
    );
    
    $conn->{channel} = shift || '#'.$canal;
    
    $conn->add_handler('376', \&on_connect);
    $conn->add_handler('quit', \&on_quit);

    # Lots of other handlers here, and below the one who should do what I want:

    $conn->add_handler('disconnect', \&on_disconnect);

    $irc->start() || die("Impossible to start.");
}