#!C:\\Programme\\Perl\\bin

use strict;
use warnings;
use WWW::Mechanize;
use HTTP::Cookies;

my $outfile = "out.htm";
my $url = "http://testhost.com/mainpage";
my $username = "test";
my $password = "testpw";
my $mech = WWW::Mechanize->new();
my $formname = "form1";

$mech->cookie_jar(HTTP::Cookies->new());
$mech->get($url);
$mech->form_name($formname);
$mech->field(userName => $username);
$mech->field(password => $password);
$mech->click();
my $output_page = $mech->content();
open(OUTFILE, ">$outfile");
print OUTFILE "$output_page";
close(OUTFILE);