<script type="text/javascript" charset="utf-8">    
  $(document).ready(function() {  
 
    // Identify this question
    var thisQuestion = $('#question{QID}');
 
    // Assign row-specific classes
    $('tr.subquestions-list:not(:last) td.question-item', thisQuestion).addClass('non-exclusive');
    $('tr.subquestions-list:last td.question-item', thisQuestion).addClass('exclusive');  
    // Assign column-specific classes
    $('tr.subquestions-list', thisQuestion).each(function(i){
      $('> *', this).each(function(i){
        $(this).addClass('column-'+i+'');
        $(this).attr('data-column', i);
      });
    });  
 
    // Listener on the checkboxes
    $('input[type="checkbox"]', thisQuestion).on('change', function(e) {
 
      if($(this).is(':checked')) {
        var columnNum = $(this).closest('td').attr('data-column');
        if($(this).closest('td').hasClass('exclusive')) {
          $('td[data-column="'+columnNum+'"].non-exclusive input[type="checkbox"]', thisQuestion).prop('checked', false);
          $('td[data-column="'+columnNum+'"].non-exclusive input:hidden', thisQuestion).attr('value', '');
        }
        else {
          $('td[data-column="'+columnNum+'"].exclusive input[type="checkbox"]', thisQuestion).prop('checked', false);
          $('td[data-column="'+columnNum+'"].exclusive input:hidden', thisQuestion).attr('value', '');
        }
 
        // Check relevance
        $('td[data-column="'+columnNum+'"] input[id^="answer"]', thisQuestion).each(function(i) {
          fixnum_checkconditions($(this).attr('value'), $(this).attr('id').replace(/answer/, ''), 'hidden');
        });
      }
    });
    });
</script>