use strict;

use Tk;
use Tk::Notebook;

my $main = MainWindow->new;
my $menubar = $main->Menu();

# Default is never used
my $execute = \&default;

$main->configure(-menu => $menubar,
                 );

my $menu = $menubar->cascade(-label => '~File',
                             -menuitems => [
                            ['command', 'Execute',  -command => \$execute],
                            ['command', '~Exit', -command => sub{$main->destroy}],
                                           ]
                            );

my $notebook = $main->NoteBook();

# Execute menu item changes with each tab
my $tab1 =$notebook->add("tab1",
                        -label => "Tab 1",
                        -raisecmd => sub{ $execute = \&tab1 },
                        );
my $tab2 =$notebook->add("tab2",
                        -label => "Tab 2",
                        -raisecmd => sub{ $execute = \&tab2 },
                        );
$notebook->pack();

MainLoop;


sub default{
    print "Default\n";
}

sub tab1{
 print "Tab1\n";
}

sub tab2{
    print "Tab2\n";
}