<script type="text/javascript" charset="utf-8">    
  $(document).ready(function() {  
 
    // Identify the questions
    var thisQuestion = $('#question{QID}');
    var qHidden = thisQuestion.nextAll('.text-short:eq(0)');
    var hiddenInput = $('input.text', qHidden);
 
    // Hide qHidden
    qHidden.hide();
 
    // Listener on the checkboxes
    $('input.checkbox', thisQuestion).on('change', function(e) {
      // Build an array of checked answers
      var checkedAnswers = [];
      $('input.checkbox:checked', thisQuestion).each(function(i) {
        checkedAnswers.push($(this).nextAll('label:eq(0)').text());
      });
 
      // Load the hidden question with a random item from the array
      var checkedLength = checkedAnswers.length;
      $(hiddenInput).val(checkedAnswers[Math.floor(Math.random()*checkedLength)]);
 
      // Fire Expression Manager
      checkconditions(hiddenInput.value, hiddenInput.name, hiddenInput.type);
    });
    });
</script>

<script type="text/javascript" charset="utf-8">    
  $(document).ready(function() {  
 
    // Identify the questions
    var thisQuestion = $('#question{QID}');
    var qHidden = thisQuestion.nextAll('.text-short:eq(0)');
    var hiddenInput = $('input.text', qHidden);
 
    // Hide qHidden
    qHidden.hide();
 
    // Listener on the checkboxes
    $('input.checkbox', thisQuestion).on('change', function(e) {
      // Build an array of checked answers
      var checkedAnswers = [];
      $('input.checkbox:checked', thisQuestion).each(function(i) {
        checkedAnswers.push($(this).nextAll('.label-text:eq(0)').text());
      });
 
      // Load the hidden question with a random item from the array
      var checkedLength = checkedAnswers.length;
      $(hiddenInput).val(checkedAnswers[Math.floor(Math.random()*checkedLength)]);
 
      // Fire Expression Manager
      checkconditions(hiddenInput.value, hiddenInput.name, hiddenInput.type);
    });
    });
</script>