#! /usr/bin/perl
# 
# $Id$
# JavaScript detection scriptlet Perl template.
# Copyright (C) 2003 Jan Kratochvil <project-www.jankratochvil.net@jankratochvil.net>
# 
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; exactly version 2 of June 1991 is required
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA


package have_js;
require 5.6.0;	# at least 'use warnings;' but we need some 5.6.0+ modules anyway
our $VERSION=do { my @r=(q$Revision$=~/\d+/g); sprintf "%d.".("%03d"x$#r),@r; };
our $CVS_ID=q$Id$;
use strict;
use warnings;

BEGIN{ open F,"Makefile"; our $top_dir=pop @{[split /\s/,(grep /^top_srcdir/,<F>)[0]]}; eval "use lib '$top_dir'"; close F; }
use My::Web;


my $W=My::Web->init(
		"__PACKAGE__"=>__PACKAGE__,
		"title"=>'Homepage of Jan Kratochvil',
		);
# Do not: My::Web->heading();
$W->{"r"}->send_http_header("text/javascript");

# Prevent redirection of some top (referring) foreign webpage as it
# may not pass "have_js=1" to us anyway. (for example Google cache)
print ""
		.'if (0'."\n"
		."\t\t".'|| window.location.hostname=="'.$W->{"r"}->hostname().'" && window.location.port==  80'."\n"
		."\t\t".'|| window.location.hostname=="'.'localhost'          .'" && window.location.port==7680)'."\n";
print <<'HERE';
	{
		var searchN=window.location.search;
		if (searchN=="" || searchN=="?")
			searchN="?";
		else
			searchN+="&";
		searchN+="have_js=1";

		window.location.href
				=window.location.protocol+"//"
				+window.location.hostname
				+(window.location.port==80 ? "" : ":"+window.location.port)
				+window.location.pathname
				+window.location.hash
				+searchN;
		}
HERE

# Do not: My::Web->footer();
