anchor.diff:      </tr>
     </thead>
     <tbody>
  -  <% for submission in @submissions %> 
  +  <% for submission in @submissions %>
       <tr id="row-<%= submission.id %>" class="submission-row">
         <td><input class="cbox" type="checkbox" id="cbox-<%= submission.id %>"></td>
  -      <td><%= link_to submission.course_user_datum.email,          
  +      <td><%= link_to submission.course_user_datum.email,
                         history_course_assessment_path(@course, @assessment, cud_id: submission.course_user_datum_id, partial: true),
                         {remote: true, class: :trigger}
   
  
positive.code:         <%= submission.submitter_ip %>
        </td>
        <td><% if @autograded and submission.version > 0 then %>
              <%= link_to "Regrade", 
                  [:regrade, @course, @assessment, submission_id: submission.id], 
                  { method: :post,
                   :title=>"Rerun the autograder on this submission",
                   :class=>"btn small"} %>
  
negative.code: 
    <%= javascript_include_tag "table_floating_header" %>
    <%= javascript_include_tag "manage_submissions" %>
  
  <% end %>
  
  <hr>
  <p>
  <%= link_to "Create New Submission", new_course_assessment_submission_path(@course, @assessment),
      {:title=>"Create a new submission for a student, with an option to submit a handin file on their behalf",
       :class=>"btn"} %>
  <%= link_to "Download All Submissions",
  