LaFactoriaVerde_Web/check_login.php

<?php
require ("config.php");

session_start();
//check to see if the user already has an open session
if (($_SESSION[user_name] != "") && ($_SESSION[password] != ""))
{
	header("Location:$_SESSION[redirect]");
	exit;
}

//check to see if cookies have been set previously
if(($lr_user != "") && ($lr_pass != ""))
{
	header("Location:$base_dir/redirect.php");
	exit;
}

//if neither is true, redirect to login
	header("Location:$base_dir/login.php");
?>