anchor.diff:  
   <% if @user.nil? %>
       <p><strong>The survey is only available to logged-in users.</strong></p>
  +<% elsif AlaveteliConfiguration::survey_url.blank? %>
  +   <p>Sorry! The survey is currently unavailable, please check back later. </p>
   <% elsif @user.survey.already_done? %>
       <p>Thank you for completing the survey.</p>
   <% else %>
  
positive.code:             </tr>
              <tr>
                  <td class="us_label"><div class="us_label">
                  The incomes of households differ a lot in Britain today. 
                                    Which figures best represents the total income of your household before tax?
              </div></td>
                  <td>
  
negative.code:         <p>Your feedback will help us <strong>make the site better</strong> and help us tell more people about it.</p>
      </div>
      <hr />
  
      <% survey_form(@user.survey) do %>
          <table>
              <colgroup>
  