http://vault.openmonkey.com/ en-us 40 Blah Blah Woof Woof comments <p>Without specifying any extra options for Ruby on Rails&#8217; <code>radio_button</code> or <code>radio_button_tag</code> form tag helpers, each tag will share the same <code>id</code> and <code>name</code> attributes.</p> <p>While the <code>name</code> attribute needs to be shared for a set of radio buttons to work properly, sharing the <code>id</code> attribute is not necessary and will also break the <code>observe_field</code> JavaScript helper. In this case, the field observer will only be triggered for any events in the first of the radio buttons with the specified <code>id</code>.</p> <p>Fortunately, you can set the <code>id</code> manually:</p> <pre><code> &lt;%= radio_button_tag "button_name", "button_val", checked, :id =&gt; "my_custom_id" %&gt; </code></pre> <p>Then, using a separate observer for each radio button in your set with a unique <code>id</code>, you can effectively observe any change in the set. Watch out, radio buttons!</p> Mon, 13 Mar 2006 21:20:00 PST <a href="/articles/2006/03/13/observe_field-and-radio-buttons">observe_field and radio buttons</a> <a href="/articles/2006/03/13/observe_field-and-radio-buttons">observe_field and radio buttons</a>