MAIN: {
  debug("+MAIN");

  # Attempt to load the master.pcg configuration file
  readConfig("master.pcg");

  $mainwindow = MainWindow->new();
  my $menubar = $mainwindow->Frame()->grid(-row => 0, -col => 0,
                                       -columnspan => 3,
                                        -sticky => 'nw');
 
  my $filemenu = $menubar->Menubutton(-text => 'File');

  $filemenu->command( -label   =>  'Open Config',
                                 -command =>  \&loadConfig );
  $filemenu->command( -label   =>  'Save Config',
                                 -command => \&saveConfig  );
  $filemenu->separator();
  $filemenu->command(-label   => 'Configuration...',
                               -command => \&doConfig );
  $filemenu->separator();
  $filemenu->command(-label => 'Exit', -command => sub {exit;} );

  $filemenu->pack(-side => 'left');

  my $left   = $mainwindow->Frame->grid(-row => 1,
                                     -col => 0,
                                     -sticky => 'nw');
  my $right  = $mainwindow->Frame->grid(-row => 1,
                                     -col => 1,
                                     -sticky => 'nw');
  my $bottom = $mainwindow->Frame->grid(-row => 2,
                                     -col => 0,
                                     -columnspan => 3,
                                     -sticky => 'nw');


  ### Left panel, input functionality

  $left->Optionmenu(
               -options => \@trxtype,
               -variable => \$trans->{TRXTYPE},
               )->pack(-side => "top", -anchor => "nw");

  $left->Optionmenu(
               -options => \@cards,
               -variable => \$trans->{_CARDTYPE},
               )->pack(-side => "top", -anchor => "nw");

  $left->LabEntry(-label => "Name",
     -labelPack => [-side => "right", -anchor => "w"],
     -width => 20,
     -textvariable => \$trans->{_NAME})->pack(-side => "top",
                                          -anchor => "nw");

  $left->LabEntry(-label => "Card Number",
     -labelPack => [-side => "right", -anchor => "w"],
     -width => 20,
     -textvariable => \$trans->{ACCT})->pack(-side => "top",
                                          -anchor => "nw");

  $left->LabEntry(-label => "Exp Date (1201)",
     -labelPack => [-side => "right", -anchor => "w"],
     -width => 20,
     -textvariable => \$trans->{EXPDATE})->pack(-side => "top",
                                            -anchor => "nw");

  $left->LabEntry(-label => "Invoice Number",
     -labelPack => [-side => "right", -anchor => "w"],
     -width => 20,
     -textvariable => \$trans->{INVNUM})->pack(-side => "top",
                                           -anchor => "nw");

  $left->LabEntry(-label => "Amount",
     -labelPack => [-side => "right", -anchor => "w"],
     -width => 20,
     -textvariable => \$trans->{AMT})->pack(-side => "top",
                                         -anchor => "nw");

  $left->LabEntry(-label => "Original ID",
     -labelPack => [-side => "right", -anchor => "w"],
     -width => 20,
     -textvariable => \$trans->{ORIGID})->pack(-side => "top",
                                           -anchor => "nw");

  $left->LabEntry(-label => "Street (for AVS)",
     -labelPack => [-side => "right", -anchor => "w"],
     -width => 20,
     -textvariable => \$trans->{STREET})->pack(-side => "top",
                                           -anchor => "nw");

  $left->LabEntry(-label => "Zip (for AVS)",
     -labelPack => [-side => "right", -anchor => "w"],
     -width => 20,
     -textvariable => \$trans->{ZIP})->pack(-side => "top",
                                        -anchor => "nw");

  $left->LabEntry(-label => "Comment 1",
     -labelPack => [-side => "right", -anchor => "w"],
     -width => 20,
     -textvariable => \$trans->{COMMENT1})->pack(-side => "top",
                                             -anchor => "nw");

  $left->LabEntry(-label => "Comment 2",
     -labelPack => [-side => "right", -anchor => "w"],
     -width => 20,
     -textvariable => \$trans->{COMMENT2})->pack(-side => "top",
                                             -anchor => "nw");

  # Now we will create the output section
  $right->Label(-text => 'PNRef')->
                grid(-row => 0, -column => 0,-sticky => 'nw');
  $right->Label(-textvariable => \$results->{PNREF})->
                grid(-row => 0, -column => 1,-sticky => 'nw');
 
  $right->Label(-text => 'Result')->
               grid(-row => 1, -column => 0,-sticky => 'nw');
  $right->Label(-textvariable => \$results->{RESULT})->
               grid(-row => 0, -column => 1,-sticky => 'nw');

  $right->Label(-text => 'Respcode')->
               grid(qw/-row 2 -column 0 -sticky nw/);
  $right->Label(-textvariable => \$results->{RESPCODE})->
               grid(qw/-row 2 -column 1 -sticky nw/);

  $right->Label(-text => 'Resmsg')->
               grid(qw/-row 3 -column 0 -sticky nw/);
  $right->Label(-textvariable => \$results->{RESPMSG})->
               grid(qw/-row 2 -column 1 -sticky nw/);

  $right->Label(-text => 'Authcode')->
               grid(qw/-row 4 -column 0 -sticky nw/);
  $right->Label(-textvariable => \$results->{AUTHCODE})->
               grid(qw/-row 3 -column 1 -sticky nw/);


  $right->Label(-text => 'Errcode')->
               grid(qw/-row 5 -column 0 -sticky nw/);
  $right->Label(-textvariable => \$results->{ERRCODE})->
               grid(qw/-row 4 -column 1 -sticky nw/);

  $right->Label(-text => 'Errmsg')->
               grid(qw/-row 6 -column 0 -sticky nw/);
  $right->Label(-textvariable => \$results->{ERRMSG})->
               grid(qw/-row 5 -column 1 -sticky nw/);

  $right->Label(-text => 'AVSZip')->
               grid(qw/-row 7 -column 0 -sticky nw/);
  $right->Label(-textvariable => \$results->{AVSZIP})->
               grid(qw/-row 6 -column 1 -sticky nw/);

  $right->Label(-text => 'AVSAddress')->
               grid(qw/-row 8 -column 0 -sticky nw/);
  $right->Label(-textvariable => \$results->{AVSADDR})->
               grid(qw/-row 7 -column 1 -sticky nw/);

  ### Bottom panel, both input & output

  $bottom->LabEntry(-label => "(Sent)",
     -labelPack => [-side => "right", -anchor => "w"],
     -width => 96,
     -textvariable => \$trans->{_PARAM})->
     grid(qw/-row 0 -column 0 -sticky nw/);

  $bottom->LabEntry(-label => "(Recvd)",
     -labelPack => [-side => "right", -anchor => "w"],
     -width => 96,
     -textvariable => \$results->{RESP})->
     grid(qw/-row 1 -column 0 -sticky nw/);


  $bottom->Button(-text => 'Process Transaction',
                  -command => \&processTransaction )->
                  grid(qw/-row 2 -column 0 -sticky nesw/);

  MainLoop();   # Start the event processing
  
  # Will never get here 
  debug ("-MAIN");
}