<%= style_link("Read all comments on " + @comment.ultimate_parent.name, 
               tag_comments_url(@comment.ultimate_parent)) %>
<br />

<% unless @noreply %>
  <%= style_link("Reply to this comment",
                 comment_url(@comment, add_comment_reply_id: @comment.id)) %>
  <br />
<% end %>

<%= style_link("Go to the thread starting from this comment", 
               comment_url(@comment)) %>
<br />

<% unless @comment.id == @comment.thread %>
  <%= style_link("Go to the thread to which this comment belongs", 
                 comment_url(@comment.thread)) %>
<% end %>
