Rails - May 2010 - How RoR extract a http parameterfrom arequest?

This is request made from the client:
new Ajax.Updater("sip_tab_content",
           "/rails/test_modules/show/"+$F"boardid"),
                    {method :''get'',
                      onFailure:displaySIPTabFailure,
                      onComplete:displaySIPTabFailure
                    });

This is controller from the ROR controller acting as server:
class TestModulesController < ApplicationController
 def index
    @test_modules = TestModule.find(:all)

    respond_to do |format|
      format.html # index.html.erb
      format.xml  { render :xml => @test_modules }
    end
  end
def show
    @test_module = TestModule.find(params[:id])
#TestModule is a module class accessing database
    respond_to do |format|
      format.html # show.html.erb
      format.xml  { render :xml => @test_module }
    end
  end
end
# index.html.erb:

The parameter value "($F"boardid")" passed by Ajax.Updater
is taken by
"id". I''m a newbie and didn''t know how the 
"($F"boardid")" is passed
into "id". If I want to add one para after
"($F"boardid")" , how to pick
it from controller?
-- 
Posted via http://www.ruby-forum.com/.

-- 
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-talk?hl=en.