How to Calculate Date Range Exclude Weekend & Public Holiday In Malaysia Calendar

Hi, I have a task to make the calculation date range whici is Exclude Weekend & Public Holiday. Is that possible to that in joget? Here is the basic coding that include public & weekend. Appreciate your help.

$('input[name="fromDatepicker"], input[name="toDatepicker"]').change( function(){
      d1 = $('input[name="fromDatepicker"]').datepicker('getDate');
      d2 = $('input[name="toDatepicker"]').datepicker('getDate');
      diff = 0;
      if (d1 && d2) {
            diff = Math.floor((d2.getTime() - d1.getTime()) / 86400000); // ms per day
      }
      $('input[name=days]').val(diff);
});

Thanks.