anchor.diff:          <tr>
           <% chunk.each_with_index do |avatar,inner| -%>
              <% index = outer*chunk_size + inner -%>
  -           <td onclick='selection("avatar", "<%=index-%>");'>
  +           <td onclick='start_selection("avatar", "<%=index-%>");'>
                <input id="avatar_<%=index-%>"
                       type="radio"
                       name="avatar"
  
positive.code:        !selected('avatar')
      || !selected('filesets[kata]')
      || !selected('filesets[language]');
    
    // Internet Explorer does not appear to be working with the
    // td onclick events. This means the start button is never
    // enabled. Work around this by enabling start for IE.
    
    if (navigator.appName == 'Microsoft Internet Explorer')
    {
      $('start_button').disabled = false;
    }
  }
  
  document.observe('dom:loaded', function() 
  
negative.code:   <div class="panel">
      <span class="choose_title"><%=name.capitalize-%>?</span>
      <% FileSet.new(name).choices.each_with_index do |choice,index| -%>
        <div onclick='start_selection("<%=name-%>", "<%=index-%>");'>
          <input id="<%=name-%>_<%=index-%>" 
                 type="radio" 
                 name="filesets[<%=name-%>]" 
  