anchor.diff:  <script type="text/javascript">
     var tl;
  +  var hiddenTracks = Array();
  +
     function onLoad() {
       SimileAjax.History.enabled = false;
   
  
positive.code:       }
    }
  
  </script>
  
  
  
negative.code: <table class='skid skid--table'>
    <thead>
    	<tr>
        <th scope='col' class='skid'></th>
        <th scope='col' class='skid'>name</th>
        <th scope='col' class='skid'>cron</th>
        <th scope='col' class='skid'>events</th>
        <th scope='col' class='skid'>track</th>
      </tr>
    </thead>
    <tbody>
      <% jobs.each do |k, v| %>
        <tr>
          <td><%= check_box_tag(v[:track], v[:track], true, :onclick=>"hideShowTrack(#{v[:track]});")%></td>
          <td><%= k %></td>
          <td><div class='skid--cron'><%= v[:cron] %></div></td>
          <td><%= v[:events] %></td>
          <td><%= v[:track] %></td>
        </tr>
      <% end -%>
    </tbody>
  </table>
  <%= @jobs %>
  