Rails - Mar 2006 - Multiple radio buttons for defining multiple objects?

Hi, I''ve been working on a multiple choice Question/Answer system.  The
response object (analagous to a lineitem) has a question_id, user_id, 
and the actual response.  What''s a good way of making a form with 
multiple response objects which are created from the radio_button 
helper?

Right now I''ve got the following code:

##################################################
<%= start_form_tag :action => ''dump'', :id => @user.id
%>
<p><label for="quesion_1">Question
1</label><br/>
True <%= radio_button(''responses'',
''response'', ''true'')%>
False <%= radio_button(''responses'',
''response'', ''false'')%>
Maybe <%= radio_button(''responses'',
''response'', ''maybe'')%></p>
##################################################

I''m just using dump to show the params, which puts out 
{"responses"=>{"response"=>"true"},
"commit"=>"Take the test",
"action"=>"dump", "id"=>"8",
"controller"=>"survey"}.  How do I add a
question_id, user_id straight into that "responses" hash?

Also, how should I create multiple response objects later?  I''m very 
shakey on how to create multiple instances of the same object from one 
form...

Thanks,
Xavier

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