function getPage ($filename) {
	$path = $filename .'.php';
	if (file_exists($path))
		include $path;
	else
		include 'home.php';
}

function redirectTo ($message, $location = NULL, $second = NULL) {
	$second = ($second != NULL) ? $second : 2;
	if ($location != NULL) {
		if ($location == 'back') {
			$location = $_SERVER['HTTP_REFERER'];
		} else {
			$location = $location . '.php';
			if (file_exists($location)) {
				$location = $location;
			} else {
				$second   = 5;
				$message  = '<div class="alert alert-danger">Error : '. $location . ' Not Exist!, You Will Be Redirected To Home Page After ' . $second . ' Seconds.</div>';
				$location = 'index.php';
			}
		}
	} else {
		$location = 'index.php';
	}
    echo $message;
    echo '<div class="alert alert-info"><span class="glyphicon glyphicon-refresh icon" aria-hidden="true"></span> You Will Be Redirected After ' . $second . ' Seconds.</div>';
    header("refresh:$second;$location");
    exit;
}