anchor.diff:        <% if answer.present? %>
           Current File: <%= link_to(answer.attachment_file_name, answer.attachment.expiring_url) %>
           <%= link_to(image_tag('fe/icons/minus-button.png'),
  -                    delete_file_fe_answer_sheet_page_path(@presenter.active_answer_sheet, @page, question_id: element_id),
  +                    delete_file_fe_answer_sheet_page_path(@presenter.active_answer_sheet, @page, question_id: element_id, answer_sheet_type: @answer_sheet.class.name),
                       method: :delete, remote: true, class: 'remove_current') %>
           <script>
             $('<%= base_element %> .remove_current').click(function() {
               $.ajax({
                 type: 'DELETE',
  -              url: '<%= delete_file_fe_answer_sheet_page_path(@presenter.active_answer_sheet, @page, question_id: element_id) %>',
  +              url: '<%= delete_file_fe_answer_sheet_page_path(@presenter.active_answer_sheet, @page, question_id: element_id, answer_sheet_type: @answer_sheet.class.name) %>',
                 success: function(result) {
                   $.get("/fe/answer_sheets/<%= @answer_sheet.id %>/page/<%= @page.id %>/edit?answer_sheet_type=<%= @answer_sheet.class.name %>", function(data) {
                     $('<%= base_element %>').replaceWith($(data).find('<%= base_element %>'))
  
positive.code: 
                var $input = $("<%= base_element %> .upload_field").html5_upload({
                    url: function(number) {
                      return "<%= save_file_fe_answer_sheet_page_path(@presenter.active_answer_sheet, @page, :question_id => element_id) %>";
                    },
                    sendBoundary: window.FormData || $.browser.mozilla,
                    onStart: function(event, total) {
  
negative.code:         <% session_key_name = Rails.application.config.session_options[:key] %>
          $('#<%= dom_id(attachment_field) %>_file_uploader').uploadify({
              uploader        : '<%= asset_path "fe/uploadify/uploadify.swf" %>',
              script          : '<%= save_file_fe_answer_sheet_page_path(@presenter.active_answer_sheet, @page, :question_id => element_id, answer_sheet_type: @answer_sheet.class.name) %>',
              fileDesc        : 'Pick a file',
              fileExt         : '*.*',
              auto            : true,
  