I'm trying to follow this post http://stackoverflow.com/questions/576240/how-can-i-unobtrusively-disable-submit-buttons-with-javascript-and-prototype but I can't get it to work.  The form triggers an RJS function, so I need to keep the helpers' onclick events intact. The RJS returns/reloads the same forms along with two new texts.  I'm really confused.  Here is my rails code for the forms:
.span-20#comparison
  / new comparison . . .
  / voting forms (also reloaded)
  .span-4.prepend-3.append-6
    - form_remote_tag :action => url_for(:controller => :comparisons), :method => :post do
      = hidden_field_tag :poem1_id, poems[:a].id
      = hidden_field_tag :poem2_id, poems[:b].id
      = hidden_field_tag :response, 1
      = submit_tag "Vote for me", :disabled => false, :disable_with => 'Vote for me', :class => "compare"    
  .span-4.append-3.last
    - form_remote_tag :action => url_for(:controller => :comparisons), :method => :post do
      = hidden_field_tag :poem1_id, poems[:a].id
      = hidden_field_tag :poem2_id, poems[:b].id
      = hidden_field_tag :response, 2
      = submit_tag "Vote for me", :disable_with => 'Vote for me', :class => "compare"
  .span-4.prepend-8.append-8.prepend-top.last
    - form_remote_tag :action => url_for(:controller => :comparisons), :method => :post do
      = hidden_field_tag :poem1_id, poems[:a].id
      = hidden_field_tag :poem2_id, poems[:b].id
      = hidden_field_tag :response, 'draw'
      = submit_tag "Declare Draw", :disable_with => 'Declare Draw', :class => "compare"
RJS
page.replace_html :comparison, :partial => 'poems', :object => @poems
page.insert_html :top, :previous, :partial => 'comparison', :object => @comparison
page << "Effect.ScrollTo($('top'));"