Forum: Ruby on Rails Rails 2 blog screencast, ajax error

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mdq (Guest)
on 2009-03-04 12:07
(Received via mailing list)
I've been following the '15 minute blog ' screencast on the rails
site. Got to the part when you add ajax functionality to the comments
form and when i try to post a new comment this way in Firefox, i get
an alert window with the following message:

RJS error:

TypeError: null has no properties

and then, when i click 'ok':

Element.insert("comment", { bottom: "<div class=\"comment\" id=
\"comment_12\">\n  <p>\n    <strong>Posted less than a minute \nago</
strong><br />\n    rails    \n  </p>\n</div>\n" });
$("comment_12").visualEffect("highlight");
$("new_comment").resetlocal();

I'm pretty sure there are no typos in the code, I'm new to rails so
any help is welcome. Thanks in advance
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