#!/usr/local/bin/perl

print "Content-type: text/html\n\n";

$ua = $ENV{HTTP_USER_AGENT};

sub detect_iPhone
{
    if ($ua =~ /iPhone/ || $ua =~ /iPod/) {
        return true;
    } else {
        return false;
    }
}

if (&detect_iPhone() eq true) {
        print '<p style="font-size: 30px">This is an iPhone or iPod touch.</p>';
} else {
        print '<p style="font-size: 30px">This is not an iPhone or iPod touch.</p>';
}