The examples have you put '<li>down</li>' as the text part to the Ajax->link function doesn't work correctly. It ends up making the
<li>up</li> and it didn't work in my browser at all (Firefox 3.05). I had to put the <li> tags outside that Ajax->link business. So on pages 165, 170 have code that won't work (for me). Then the tag also doesn't work on 172. The final example (9-11) I had to rewrite as:
return "<li>" . $this->output($this->Ajax->link($text, $down, array('update' => $update), null, false)) . "</li>";
