<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
require_once BASEPATH . '/libraries/Session.php';
class MY_Session extends CI_Session {
	function __construct() {
		parent::__construct();
		$this->CI->session = $this;
	}
	function sess_update() {
		// Do NOT update an existing session on AJAX calls.
		if (!$this->CI->input->is_ajax_request()) {
			return parent::sess_update();
		}
	}
}
