jQuery Full Calendar highlight dates

hi

In full calendar, need to highlight the selected date and when i change the selection , the previous selection should clear off and the current selected should be highlighted.

<div style="border:solid 2px red;">

        <div id='calendar'></div>

</div>

$(document).ready(function() {

 

    var date = new Date();

    var d = date.getDate();

    var m = date.getMonth();

    var y = date.getFullYear();

 

    var events_array = [

        {

        title: 'Test1',

        start: new Date(2012, 8, 20)},

    {

        title: 'Test2',

        start: new Date(2012, 8, 21)}

    ];

 

    $('#calendar').fullCalendar({

        header: {

            left: 'prev,next today',

            center: 'title',

            right: 'month,agendaWeek,agendaDay'

        },

        editable: true,

        events: events_array,

        dayClick: function(date, allDay, jsEvent, view) {

            $(this).parent().siblings().removeClass('fc-cell-overlay');

            $(this).addClass('fc-cell-overlay');

        }

    });

});