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<?php	/* If page isent set now set it to "main" */	if(!isset($_GET['page'])) { $page = "main"; }	else { $page = $_GET['page']; }	/* if user isent logged in or does not request the pages he can when not logged in set it to login */	$allowdPages = array("about", "faq", "register", "logout");	unset($_SESSION['usr']); 	if(!isset($_SESSION['usr']) && !in_array($page, $allowdPages)) { $page = "login"; }	/* load pages */	$file = "system/pages/page_$page.php";	if(!is_file($file)) { require_once("system/pages/page_main.php"); }	else { require_once($file); }?>