<script type="text/javascript" data-author="Tony Partner">
  $(document).ready(function() {
    var thisQuestion = $('#question{QID}');
    $('.answer-item:not(.ls-irrelevant) input[type="checkbox"]', thisQuestion).prop('checked', true).trigger('change');
  });
</script>

<script type="text/javascript" data-author="Tony Partner">
  $(document).ready(function() {
    var thisQuestion = $('#question{QID}');
    $('input[type="checkbox"]', thisQuestion).prop('checked', false).trigger('change');
    $('.answer-item:not(.ls-irrelevant) input[type="checkbox"]', thisQuestion).prop('checked', true).trigger('change');
  });
</script>

<script type="text/javascript" data-author="Tony Partner">
  $(document).on('ready pjax:scriptcomplete',function(){
 
    // Identify this question
    var qID = {QID};
    var thisQuestion = $('#question'+qID);
    var filterQuestion = thisQuestion.prevAll('.multiple-opt:eq(0)');
    var filterQID = filterQuestion.attr('id').replace(/question/, '');
 
    // Loop through irrelevant items in the filter question
    $('.answer-item.ls-irrelevant', filterQuestion).each(function(i) {
      var thisCode = $(this).attr('id').split('X'+filterQID)[1];      
      var arrayRow = $('input:radio[value="'+thisCode+'"]:eq(0)', thisQuestion).closest('tr');
 
      // Hide the corresponding row in the array question
      arrayRow.addClass('ls-hidden');
 
      // Un-check the radios in the corresponding row (in case of previous answers)
      $('input:radio', arrayRow).each(function(i) {
        var thisInput = $(this);
        thisInput.prop('checked', false);
        checkconditions('', thisInput.attr('name'), 'radio')  
      });
    });
  });
</script>