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  $(document).on('ready pjax:scriptcomplete',function(){
 
    // Identify this question
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    var thisQuestion = $('#question'+qID);
 
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    // A function to un-check boxes
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<script type="text/javascript" charset="utf-8">  
  $(document).ready(function() {
 
    // The subquestion code to place in the last position
    var fixedCode = 'A20';
 
    // Identify this question
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    $('table.subquestion-list tbody:last', thisQuestion).append($('tr[id$="X'+q1ID+fixedCode+'"]'));
 
    // Fix up the array row background colours
    $('tr.answers-list', thisQuestion).each(function(i){
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<script type="text/javascript" charset="utf-8">  
  $(document).on('ready pjax:scriptcomplete',function(){
 
    // Identify this question
    var qID = '{QID}';
    var thisQuestion = $('#question'+qID);
 
    // Assign column-specific attributes and classnames
    $('tr.subquestion-list', thisQuestion).each(function(i) {
      $('> *', this).each(function(i) {
        $(this).attr('data-column', i);
      });
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    $('tr.subquestion-list:last td.answer-item', thisQuestion).addClass('exclusive-item');
 
    // A function to un-check boxes
    function resetCheckbox(thisItem) {
      $(':hidden', thisItem).val('');
      $(':checkbox', thisItem).prop('checked', false).trigger('change');
    }
 
    // Listener on the checkboxes
    $(':checkbox', thisQuestion).on('change', function(e) {
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        $.each(items, function(i, el) {
          resetCheckbox(el);
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</script>