#!/usr/local/bin/perl -w
use strict;
use Tk;
use Data::Dumper;

my $mw = MainWindow->new;
my $menu = $mw->Menu;
for my $i (1..24)
 {
  my $sm = $menu->cascade(-label => "Button$i");
  $sm->command(-label => 'Quit', -command => \&lrw);
 }
my $h = $menu->cascade(-label => "Help");
$h->command(-label => 'Quit', -command => [destroy => $mw]);

$mw->configure(-menu => $menu);
$mw->Scrolled('Text')->pack(-fill => 'both', -expand => 1);
$mw->Button(-text => 'Quit', -command => [destroy => $mw])->pack;

MainLoop;

sub lrw
{
 my $menu = $mw->Menu;
 my $h = $menu->cascade(-label => "Help");
 $h->command(-label => 'Quit', -command => [destroy => $mw]);
 for my $i (1..5)
  {
   my $sm = $menu->cascade(-label => "Left$i");
   $sm->command(-label => 'Quit', -command => [destroy => $mw]);
  }
 $menu->separator;
 for my $i (1..5)
  {
   my $sm = $menu->cascade(-label => "Right$i");
   $sm->command(-label => 'Quit', -command => [destroy => $mw]);
  }
 $mw->configure(-menu => $menu);
}