<ul id="todo-list" style="cursor: move">
  <% @task.todos.each do |f| %>
  <li id="todo_<%= f.id %>">
    <%= f.name %>
  </li>
  <% end %>
</ul>

<%= sortable_element "todo-list",
:url => {:action => "sort", :id => @task},
:complete => visual_effect(:highlight, "todo-list")
%>