wierdness on 3.8.4 - who's online

[sailnet]

I created a php module according to the instructions here so that I could have a custom page for my advertisers - see php code below

and now when I check the who's online - just about everyone online shows up as being on that page even though I know thy are not on that page.

any ideas why?

<?php
// ####################### SET PHP ENVIRONMENT ###########################
error_reporting(E_ALL & ~E_NOTICE);
// #################### DEFINE IMPORTANT CONSTANTS #######################
define('NO_REGISTER_GLOBALS', 1);
define('THIS_SCRIPT', 'advertisers'); // change this depending on your filename
// ################### PRE-CACHE TEMPLATES AND DATA ######################
// get special phrase groups
$phrasegroups = array(
);
// get special data templates from the datastore
$specialtemplates = array(
);
// pre-cache templates used by all actions
$globaltemplates = array(
    'advertisers',
);
// pre-cache templates used by specific actions
$actiontemplates = array(
);
// ######################### REQUIRE BACK-END ############################
require_once('./global.php');
// #######################################################################
// ######################## START MAIN SCRIPT ############################
// #######################################################################
$navbits = array();
$navbits[$parent] = 'Our Advertisers Page';
$navbits = construct_navbits($navbits);
eval('$navbar = "' . fetch_template('navbar') . '";');
eval('print_output("' . fetch_template('advertisers') . '");');
?>