Qualtrics.SurveyEngine.addOnload(function() {
	var questions = $('Questions');
	var qs = questions.select('div.QuestionOuter');
	var qarr1 = [];
	var qarr2 = [];
	for(var i=0; i<qs.length; i++) {
		qarr1.push(qs[i].id);
		qarr2[qs[i].id] = qs[i+1].id;
		i++;
	}
	shuffle(qarr1);

	var separators = questions.select('div.Separator');
	var j=0;

	for(i=0; i<qarr1.length; i++) {
		questions.insert({bottom: $(qarr1[i])});
		questions.insert({bottom: separators[j]});
		j++;
		questions.insert({bottom: $(qarr2[qarr1[i]])});
		if(j < (separators.length - 1)) {
			questions.insert({bottom: separators[j]});
			j++;
		}
	}

	function shuffle(array) {
  		var currentIndex = array.length, temporaryValue, randomIndex ;

  		while (0 !== currentIndex) {
	   		randomIndex = Math.floor(Math.random() * currentIndex);
    			currentIndex -= 1;
    			temporaryValue = array[currentIndex];
    			array[currentIndex] = array[randomIndex];
    			array[randomIndex] = temporaryValue;
  		}
  		return array;
	}
});