Variable in Select not update

Variable in Select not update

Hi,

im whit this code

  2. var num=1;
  3. var num2;
  4. $(document).ready(function(){
  6. $('.cntrlr-'+num+'-ok').on('click', function() {
  7. num2=num+1;
  8. $('.scnr-'+num).addClass('hidden');
  9. $('.scnr-'+num2).removeClass('hidden');
  10. num=num+1;
  11. });

The problem is into  $('.cntrlr-'+num+'-ok'), only go when the class of object clicled is 1 (. cntrlr-'1'-ok'). The num variable change correctly but the  $('.cntrlr-'+num+'-ok') not update.

Thanks,