Rails - Mar 2006 - Live Search problems - HELP

I''m trying to make a live search for my site.  Nothing is working, and 
I''m getting a javascript error that says "Form is not
defined", but I
don''t think that''s my only problem.

This is my view:

  <%= form_remote_tag(
      :url => {:controller => ''inventory'', :action =>
''search''},
      :update => "results" )%>
    <input type="text" id="search"
name="search" size="40" value="" />
    <img id="loading" src="/images/loading.gif"
alt="Loading..."
style="display:
     none;" />
  <% end_form_tag %>

  <%= observe_field( ''search'', :frequency => 0.5,
      :url => {:controller => ''inventory'', :action =>
''search''},
      :update => :results,
      :loading => "Element.show(''loading'');",
      :complete => "Element.hide(''loading'');",
      :with => "''search='' +
escape($F(''search''))"
      ) %>

  <div id="results"></div>

Here''s my controller:

  def search
    if @params[''search'']
    @items = Content.find(:all,
             :conditions => [ ''LOWER(post) LIKE ? or LOWER(title)
LIKE
?'',
                ''%'' +
@params[''search''].downcase + ''%'',
                ''%'' +
@params[''search''].downcase + ''%''],
             :order => "id desc")
    @mark_term = @params[''search'']
    render_without_layout
    end
  end



This might be way off, but I''m trying to follow examples and what I 
*think* might work.  I can''t get anything at all so far, though.

Can someone please help me out???

Thanks!

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