function main()
{
global $current_page;
ob_start();
index_header();
if (isset($_GET['message'])) {
echo '<p class="notice">' . htmlspecialchars($_GET['message'], ENT_COMPAT, 'utf-8') . '</p>';
}
if (!isset($_SESSION['user_id'])) {
if (!isset($_GET['openid_mode']) || $_GET['openid_mode'] == 'cancel') {
return index_login();
} else {
return index_openid_callback();
}
} else {
if (isset($_GET['logout'])) {
return index_api_logout();
}
index_login_status();
index_navigation();
switch ($current_page) {
case 'account':
index_account();
break;
case 'events':
index_events();
break;
case 'data':
index_data();
break;
case 'keys':
default:
index_api_keys();
break;
}
}
index_footer();
}
<?php
require_once "../includes/functions.php";
require_once "../includes/session.php";
include "../includes/header.php";
find_selected_page();
//find page user is in
?>
<!--<div id="main">
</ul> </div> <!--end categories and navigation-->
<div id="page"><br /> <!--page of textbooks, each occupies a square in space-->
<br />
<!--sorting selection should go here-->
<?php
echo index_header();
//create the buttons of categories and subjects
?>
<h2>
<?php
if (!is_logged_in()) {
echo cannot_buy_or_sell();
}
?>
</h2>
<!-- books-->
<?php
echo index_body();
?>