#!/usr/bin/perl -wT
use CGI qw(:all);
use strict;
print header, start_html("Alphabetical sorter"), center(h2("Alphabetical sorter"));
my $query = new CGI;
if ($query->param(1)) {
foreach my $key (sort {lc(param($a)) cmp lc(param($b))} ($query->param)) {
print "$key = ";
my @values = $query->param($key);
print join("",@values),"
\n";
}
}else{
print start_form;
print textfield({name=>$_,size=>'20'}),br for 1..5;
print submit, end_form;
}