Flash = {
  fire: function(text, klass) {
    var message = $(document.createElement('div'));
    message.addClassName(klass);
    message.insert(text);
    var container = $(document.createElement('div'));
    container.addClassName("flash");
    container.appendChild(message);

    $('container').insert(container, {position: 'after'});

    setTimeout(function() { new Effect.Highlight(container); }, 1);
    setTimeout(function() { new Effect.Fade(container); }, 4000);
  }
}