No weekends Gravity Forms

no_weekends_gravity_form.js

(function ($, root, undefined) {

    $(function () {

        'use strict';

        // DOM ready, take it away


        function noSundaysOrSaturdays(date) {
            var weekday = new Array(7);
            weekday[0] = "Sunday";
            weekday[1] = "Monday";
            weekday[2] = "Tuesday";
            weekday[3] = "Wednesday";
            weekday[4] = "Thursday";
            weekday[5] = "Friday";
            weekday[6] = "Saturday";

            if (weekday[date.getDay()] == 'Sunday') {
                return [false, '', 'Not open on Sundays'];
            } else if (weekday[date.getDay()] == 'Saturday') {
                return [false, '', 'Not open on Saturdays'];
            }

            return [true];
        }
        jQuery(window).load(function () {
            jQuery('.hasDatepicker').datepicker('option', 'beforeShowDay', noSundaysOrSaturdays);
        });

    });

})(jQuery, this);