Advanced Date Pick Restriction with the jQuery UI Datepicker

You can implement the “beforeShowDay” method to restrict the days which can be selected from the datepicker.

As noted in the sourcecode:

beforeShowDay: null, // Function that takes a date and returns an array with
// [0] = true if selectable, false if not, [1] = custom CSS class name(s) or ”,
// [2] = cell title (optional), e.g. $.datepicker.noWeekends

An example (you can also run this code at jsfiddle):

[/sourcecode]
$(function(){
    $('#picker').datepicker({
        beforeShowDay: function(date) {
            var t = new Date();
            t = new Date(t.getFullYear(), t.getMonth(), t.getDate());

            var days = [];
            for (var i=0;i<7;i++) {
                t.setDate(t.getDate() + 1);
                days.push(t.getTime());
            }

            var day = date.getTime();
            return [$.inArray(day,days) > -1,''];
        },
        onSelect: function(dateText, inst) {
            $("#pickerresult").html($(this).datepicker( "getDate").toString());
        }
    });
});
[sourcecode]