$(function(){

        var testCallback = function($td,thisDate, year, month,day)
        {
            // some implementation here

            // selecting items on same cases $td.addClass('selected');

            return true;
        }


        $('#calendar')
            .renderCalendar({renderCallback:testCallback})
            .datePicker(
                {
                    inline:true,
                    selectMultiple:false,
                    startDate:'01/01/1990'
                })
            .bind(
            'dateSelected',
            function(e, selectedDate, $td)
            {
                date = selectedDate.asString();

                date = date.split(/\//);

                getStuffByAjax(date[2],date[1],date[0]);
            }
        );

});

function getStuffByAjax(year,month,day){
    // some implementation here

    return true;
}