anchor.diff:        var block = '<div class="action-item"> \
           <input type="hidden" value="'+selected_action_id+'" name="operations['+current+'][name]"> \
           <span>'+selected_text+'</span> \
  -        <textarea name="operations['+current+'][args]" type="text"></textarea> \
  +        <textarea name="operations['+current+'][args]" type="text" class="action-args"></textarea> \
         </div>';
       else
         var block = '<div class="action-item"> \
  
positive.code: 
  <%= form_tag(controller: "home", action: "manipulate", method: "post") do %>
    <%= label_tag(:initial_text, "Text to manipulate:") %>
    <%= text_area_tag(:initial_text) %>
  
    <div class="added-actions">
    </div>
  
negative.code:   <%= select_tag :method, options_for_select(@procedures), class: ['action-select'] %>
    <button type="button" class="add-action-btn">Add Procedure</button>
  
    <%= submit_tag("Manipulate Text"), class ['submit-btn'] %>
  <% end %>
  
  <script type="text/javascript">
  