anchor.diff:        function openForm(evt){
           console.log(evt)  
           $(evt.currentTarget).replaceWith("\
  -          <form id='edit_title' action='/todo_items/update/"+evt.currentTarget.id+"' method='post'> \
  +          <form id='edit_title' action='/todo_items/update/"+$(evt.currentTarget).attr('data-id')+"' method='post'> \
             <input id='title_edit_field' type='text' value='"+$(evt.currentTarget).text()+"' name='todo_title'/> \
             ");
           $("#title_edit_field").focus();
  -       
         }
   
         function submitNewTitle(evt){
  
positive.code:           (data) ->
              $("##{data.item_id}").remove() 
  
          false
negative.code:     ul#todo_items
        each todo_item in todo_items
          li(id="#{todo_item.id}") 
            span(class="item", data-id="#{todo_item.id}") #{todo_item.title}
            a(class="delete_button", href="/todo_items/delete/#{todo_item.id}", data-id="#{todo_item.id}") Delete
  
    script.
  