If you are using "group by group" mode, you could put a hidden short-text question ("qHidden") in the same group as Q-A and use a JavaScript timer to record total time in the group. Then simple relevance can be used to control the display of Q-B and Q-C.
Add a script something like this to the source of "qHidden":
Code:
<script type="text/javascript" charset="utf-8">
$(document).ready(function(){// Identify this questionvar thisQuestion = $('#question{QID}');// Hide this question
thisQuestion.hide();// Determine initial elapsed timeif($('input.text', thisQuestion).val()==''){
$('input.text', thisQuestion).val('0.0')}var elapsed = $('input.text', thisQuestion).val();// Timer to load this question (1/10 seconds)var pageTimer = setInterval(function(){
elapsed = Number(elapsed)+0.1;
$('input.text', thisQuestion).val(elapsed.toFixed(1));},100);// Stop timer when "Next" clicked
$('#movenextbtn, #movesubmitbtn').bind('click',function(){
clearInterval(pageTimer);});});</script>
Cheers,
Tony Partner Solutions, code and workarounds presented in these forums are given without any warranty, implied or otherwise.