<script type="text/javascript" data-author="Tony Partner">
 
  $(document).on('ready pjax:scriptcomplete',function(){
 
    // Identify this question
    var thisQuestion = $('#question{QID}');
 
    var timeInput = $('input:text.form-control:eq(0)', thisQuestion);
 
    var initSec = 0;
 
    // Check for elapsed time from previous visits    
    if ($.trim($(timeInput).val()) != '') {
 
      var initTime = $.trim($(timeInput).val());
 
      initTimeArr = initTime.split(':');
 
      initSec = (Number(initTimeArr[0])*3600)+(Number(initTimeArr[1])*60)+(Number(initTimeArr[2]));
 
    }
 
    // Run the timer update function
    recordTime(initSec);
 
    // Timer update function
    function recordTime(elapsedSec){
 
      var h = Math.floor(elapsedSec / 3600);      
      var m = Math.floor(elapsedSec % 3600 / 60);      
      var s = Math.floor(elapsedSec % 3600 % 60);
 
      var elapsedTime = (h > 0 ? h + ":" : "00:") + (m > 0 ? (m < 10 ? "0" : "") + m + ":" : "00:") + (s < 10 ? "0" : "") + s; 
 
      $(timeInput).val(elapsedTime).trigger('keyup');
 
      elapsedSec++;
 
      // Run the timer update function every second
      setTimeout(function() {
        recordTime(elapsedSec);
      }, 1000);
    }
  });
</script>