anchor.diff:        <ul class="submenu">
           <li>
             <div>
  -            <% form_tag url_for(:controller => :wiki, :action => :index), :method => :get do %>
  +            <%= form_tag url_for(:controller => :wiki, :action => :index), :method => :get do %>
                 <%= text_field_tag :query -%>
               <% end %>
             </div>
  
positive.code:       <ul class="submenu">
          <li>
            <div>
              <% form_tag url_for(:controller => :pool, :action => :index), :method => :get do %>
                <%= text_field_tag :query -%>
              <% end %>
            </div>
  
negative.code:       <ul class="submenu">
          <li>
            <div>
              <%= form_tag url_for(:controller => :post, :action => :index), :method => :get do %>
                <%= text_field_tag :tags -%>
              <% end %>
            </div>
  