How To disable 2nd 4 th saturday, sunday and Holiday disable using Jquery Calendar

<input type="text" id="txtCal" />

  var holiday = [[12, 30, 2015], [1, 1, 2016]]; //here get your list of holiday 

        $("#txtCal").datepicker({
            beforeShowDay: nonWorkingDays,
            numberOfMonths: 1,
            minDate: '01/01/2011',
            maxDate: '+5M',
            firstDay: 1
        });

        function nonWorkingDays(date) {

            var day = date.getDay(), Sunday = 0, Monday = 1, Tuesday = 2, Wednesday = 3, Thursday = 4, Friday = 5, Saturday = 6;
            var week = 0 | date.getDate() / 7 //get the week
         
            //check if it's second week or fourth week
            if (week == 1 || week == 3) {
                if (day == 6)  { //check for satruday
                    return [false];
                }
            }

            //check for sunday
            if (day == 0)
            {
                return [false];
            }
          
//check for holidays
            for (i = 0; i < holiday.length; i++) {
                if (date.getMonth() == holiday[i][0] - 1 &&
                date.getDate() == holiday[i][1] &&
                date.getFullYear() == holiday[i][2]) {
                    return [false];
                }
            }

            return [true];
        }