<script type="text/javascript" data-author="Tony Partner">
 
  function shuffleArray(array) {
        for (var i = array.length - 1; i > 0; i--) {
        var j = Math.floor(Math.random() * (i + 1));
        var temp = array[i];
        array[i] = array[j];
        array[j] = temp;
        }
        return array;
    }
 
    $(document).on('ready pjax:scriptcomplete',function(){
 
        // Identify the questions
        var qID = '{QID}';
        var thisQuestion = $('#question'+qID);    
        var textQuestion = thisQuestion.nextAll('.text-short:eq(0)');
        var textInput = $('input:text.form-control:eq(0)', textQuestion);
 
        // Hide the text question
        textQuestion.hide();
 
        var sqCodes = [];
 
        // First visit
        if($.trim(textInput.val()) == '') {
            // Get all sub-question codes
            $($('tr[id^="javatbd"]', thisQuestion)).each(function(i) {
                sqCodes.push($(this).attr('id').split('X'+qID)[1]);
            });
 
            // Randomize the sub-question codes
            shuffleArray(sqCodes) 
 
            // Load the sub-question codes into the hidden short-text question
            textInput.val(sqCodes)
        }
        // Returning to the page
        else {
            sqCodes = $.trim(textInput.val()).split(',');
        }
 
        // Insert the random sub-questions
        $.each(sqCodes, function(i, sqCode) {
            $($('table.subquestion-list tbody:eq(0)', thisQuestion)).append($('tr[id$="X'+qID+sqCode+'"]', thisQuestion));
 
        });
    });
</script>