> <script type='text/javascript'>
>     $(function () {
>         var today = new Date();
>         var a = 18;
>         var b = 19;
>         var c = 20;
>         var fiveDaysBefore = new Date();
>         fiveDaysBefore.setDate(a - 5);
>         var fiveDaysAfter = new Date();
>         fiveDaysAfter.setDate(b + 5);
>         $('#datepicker').datepicker({
>             minDate: fiveDaysBefore,
>             maxDate: fiveDaysAfter,
>             beforeShowDay: function (date) {
>                 if (date == 18 && date == 20) {
>                     return [true, 'dp-highlight', 'tooltipText'];
>                 }
>                 return [true, '', ''];
>             }
>         });
>     }); </script>

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