Ajax on Railsのサンプル - manabouのログ

ONLamp.com: Ajax on Rails
http://www.onlamp.com/pub/a/onlamp/2005/06/09/rails_ajax.html

<html>
  <head>
    <title>Ajax Demo</title>
    <%= javascript_include_tag "prototype" %>
  </head>
  <body>
    <h1>What time is it?</h1>
    <div id="time_div">
      I don't have the time, but
      <%= link_to_remote( "click_here",
                         :update => "time_div",
                         :url =>{ :action => :say_when },
			 :position => "after" ) %>
      and I will look it up.
    </div>
  </body>
</html>

これがブラウザにどうわたるかというと

<html>
  <head>
    <title>Ajax Demo</title>
    <script src="/javascripts/prototype.js" type="text/javascript"></script>
  </head>
  <body>
    <h1>What time is it?</h1>
    <div id="time_div">

      I don't have the time, but
      <a href="#" onclick="new Ajax.Updater('time_div', '/friends/say_when', {asynchronous:true, evalScripts:true, insertion:Insertion.After}); return false;">click_here</a>
      and I will look it up.
    </div>
  </body>
</html>

こんなかんじ

括弧の使い分けかたがよくわからないが、まぁなんとか