Gravity Forms: restrict days on datepicker

gistfile1.txt

jQuery(function () {

            // 0 = monday, 1 = tuesday, 2 = wednesday, 3 = thursday,
            // 4=friday, 5 = saturday, 6=sunday

            var daysToDisable = [2, 4, 5];

            jQuery("#input_id_id").datepicker({
                beforeShowDay: disableSpecificWeekDays
            });

            function disableSpecificWeekDays(date) {
                var day = date.getDay();
                for (i = 0; i < daysToDisable.length; i++) {
                    if (jQuery.inArray(day, daysToDisable) != -1) {
                        return [false];
                    }
                }
                return [true];
            }
        });
        
// source: http://codeasp.net/blogs/microsoft-net/767/jquery-datepicker-disable-specific-weekdays