anchor.diff:                           onchange: 'set_onbeforeunload(true);',
                            size: 35,
                            maxlength: 30,
  -                         required: true %>
  +                         required: true,
  +                         disabled: @assignment.is_peer_review? ? 'true' : 'false' %>
         </div>
   
         <div>
  
positive.code:         <%= f.text_field :description,
                           onchange: 'set_onbeforeunload(true);',
                           size: 35,
                           required: true %>
        </div>
  
        <div>
  
negative.code:         <%= f.text_area :message,
                          cols: 65,
                          rows: 8,
                          onchange: 'set_onbeforeunload(true);',
                          disabled: @assignment.is_peer_review? ? 'true' : 'false' %>
        </div>
  
        <% unless @sections.empty? %>
  