anchor.diff:  	</ul>
   <% end %>
   
  -<%= link_to "add comment", new_question_comment_path(@question), :remote => true %>
  +<% if session[:user_id] %>
  +	<%= link_to "add comment", new_question_comment_path(@question), :remote => true %>
  +<% end %>
   
   
   <% if @answers.empty? == false %>
  
positive.code: 						<% end %> 
  					</ul>
  				</li>
  	<%= link_to "add comment", new_answer_comment_path(answer_id), :remote => true %> <br>
  		<% end %>
  	</ol>
  
  
negative.code: <br>
  <br>
  
  <div id="add_comment_box_to_questions"></div>
  
  <% unless @question.comments.empty? %>
  	<h3> Comments on Question </h3>
  	<ul>
  