Rails - Jun 2008 - Problem with Ajax response with the use of action.js.rjs file

I am trying to get a grasp of Ajax response in ROR. Following the
examples in the ROR API and the books Simply Rails 2 from Sitepoint,
following are the code snippets from votes_controller and
create.js.rjs:

(from app/controllers/votes_controller.rb)
def create
  @story = Story.find(params[:story_id])
  @story.votes.create(:user => @current_user)

  respond_to do |format|
    format.html { redirect_to @story }
    format.js
  end
end

(from app/views/votes/create.js.rjs)
page.replace_html ''vote_score'', "Score:
#{@story.reload.votes.size}"
page[:vote_score].visual_effect :highlight

Following is the code from (app/views/stories/show.html.erb) that
triggers the create action in the votes controller:
<div id="vote_form">
  <% form_remote_for [ @story, Vote.new ] do |f| %>
  <%= f.submit ''shove it'' %>
  <% end %>
</div>

When I hit the above shove it button, I am getting the following error
(from the firebug console window)
<h1>NameError in Votes#create</h1>
<p>Showing <i>votes/create.js.rjs</i> where line
<b>#1</b> raised:
<pre><code>undefined local variable or method `page'' for
#&lt;ActionView::Base:0x46caf94&gt;</code></pre>
</p>

Instead when I change the create def to include the inline JavaScript
statements as follows, its working:

def create
  @story = Story.find(params[:story_id])
  @story.votes.create(:user => @current_user)

  respond_to do |format|
    format.html {redirect_to @story}
    format.js {
      render :update do |page|
        page.replace_html ''vote_score'', "Score:
#{@story.reload.votes.size}"
	page[:vote_score].visual_effect :highlight
      }
  end
end

Looks like the JavascriptGenerator is generating the necessary
JavaScript if the statements are inline instead of in a separate view
file. Is is behavior expected.

PS: I am working on WinXP using InstantRails with Rails 2.1

Thanks in advance.

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