Message/Notify class

<?php

class Message
{
    public static function push($type, $message)
    {
        $s = Session::instance();
        $message_stack = $s->get('message_stack', array());
        $message_stack[] = array('type' => $type, 'message' => $message);
        $s->set('message_stack', $message_stack);
    }

    public static function show()
    {
        return View::Factory('messages', array('messages' => Session::instance()->get_once('message_stack', array())));
    }
}