anchor.diff:  
   
   <table class="schedule" summary="This table shows the schedule for the second day of the Smidig 2009 conference on October 23rd."> 
  -  <caption>22. oktober</caption> 
  +  <caption>23. oktober</caption> 
     <colgroup class="times"> 
       <col /> 
       </colgroup> 
  
positive.code: 
  <p>Under konferansen kan du følge med på oppdateringer <a href="http://twitter.com/smidig">på Twitter!</a></p> 
  
  <table class="schedule" summary="This table shows the schedule for the first day of the Smidig 2008 conference on October 22nd."> 
    <caption>22. oktober</caption> 
    <colgroup class="times"> 
      <col /> 
  
negative.code:   <%= timeslot_talks_tr(@periods_by_time_and_scene[3]) %>
    <%= timeslot_tr("10:00&nbsp;&#8209;&nbsp;10:45", @periods_by_time_and_scene[4]) %>
    <%= timeslot_talks_tr(@periods_by_time_and_scene[4]) %>
    <%= timeslot_tr("11:00&nbsp;&#8209;&nbsp;11:45", @periods_by_time_and_scene[5]) %>
    <%= timeslot_talks_tr(@periods_by_time_and_scene[5]) %>
    <tr><td class="time">12:00&nbsp;&#8209;&nbsp;13:00</td> 
          <td colspan="3" class="slot restaurant"> 
  