#!/usr/bin/perl -w

use strict;

use CGI;
my $q = new CGI;
print $q->header();
my $SCRIPT = 'http://192.168.254.21/cgi-bin/frames.pl';

my $action = $q->param('action') || 'default';

if    ( $action eq 'kill_frames' ) { show_kill_frames() }
elsif ( $action eq 'header' )      { show_header()      }
elsif ( $action eq 'main' )        { show_main()        }
elsif ( $action eq 'show_frames' ) { show_frames()      }
else                               { show_enter()       }

exit 0;

##### SUBS #####

sub show_enter { print qq!<p><a href="$SCRIPT?action=show_frames">Show Frames</a>!; }

sub show_frames {
    print <<HTML;
<frameset rows="100,*">
  <frame name="header" scrolling="yes" src="$SCRIPT?action=header">
  <frame name="main" scrolling="yes" src="$SCRIPT?action=main">
  <noframes><p>Your browser doesn't support frames</p></noframes>
</frameset>
HTML
}

sub show_header {
    print <<HTML;
<form method="POST" action="$SCRIPT" target="_top">
  <input type="hidden" name="action" value="kill_frames">
  <input type="submit" value="Submit" name="submit">
</form>
HTML
}

sub show_main { print "<h2>Hello World!</h2>" }

sub show_kill_frames { print "<h2>Killed Frames!</h2>" }