I'm using the jQuery ui datepicker and it's supposed to be excluding weekends but doesn't seem to be doing that. 

Please help.

Thanks!

Susan

1. //datepicker
   var natDays = [
       [1, 1, 'New Year'], //2014
       [1, 20, 'Martin Luther King'], //2014
       [2, 17, 'Washingtons Birthday'], //2014       
       [5, 26, 'Memorial Day'], //2014
       [7, 4, 'Independence Day'], //2014
       [9, 1, 'Labour Day'], //2014
       [10, 14, 'Columbus Day'], //2013
       [11, 11, 'Veterans Day'], //2013
       [11, 28, 'Thanksgiving Day'], //2013 
       [12, 25, 'Christmas'] //2013     
       ];
   
   // dateMin is the minimum delivery date
   var dateMin = new Date();
   dateMin.setDate(dateMin.getDate() + (dateMin.getHours() >= 14 ? 1 : 0));
   
   function AddBusinessDays(curdate, weekDaysToAdd) {
       var offset = (weekDaysToAdd > 0 ? +1 : -1);
       weekDaysToAdd = Math.abs(weekDaysToAdd);
       var date = new Date(curdate.getTime());
       while (weekDaysToAdd > 0) {
           date.setDate(date.getDate() + offset);
           //check if current day is business day
           if (noWeekendsOrHolidays(date)) {
               weekDaysToAdd--;
           }
       }
       return date;
   }
   
   function noWeekendsOrHolidays(date) {
       var noWeekend = $.datepicker.noWeekends(date);
       return (noWeekend[0] ? nationalDays(date) : noWeekend);
   }
   
   function nationalDays(date) {
       for (i = 0; i < natDays.length; i++) {
           if (date.getMonth() == natDays[i][0] - 1 && date.getDate() == natDays[i][1]) {
               return [false, natDays[i][2] + '_day'];
           }
       }
       return [true, ''];
   }
   
   function setDeliveryDate(date) {
       $('#delivery-date').text($.datepicker.formatDate('DD, MM d, yy', date));
       $('#datepicker3').text($.datepicker.formatDate('DD, MM d, yy',
           AddBusinessDays(date, -1)));
       $('#datepicker2').text($.datepicker.formatDate('DD, MM d, yy',
           AddBusinessDays(date, -2)));
   }
   
   setDeliveryDate(AddBusinessDays(dateMin, 4));
   
   $.datepicker.setDefaults({
       beforeShowDay: noWeekendsOrHolidays,
       showOn: 'both',
       firstDay: 0,
       dateFormat: 'mm/dd/yy',
       changeFirstDay: false,
       showButtonPanel: true
   });
   // use datepicker to choose a different delivery date    
       $('#datepicker').datepicker({
       minDate: AddBusinessDays(dateMin, 4),
       onSelect: function(datestring) {
           setDeliveryDate($(this).datepicker('getDate'));
       }
   });