full calendar extension


I am using efullcalendar extension for showing attendance of a student,but its not showing the events when i set it for different days(multi day events) and it will show the event when i set it only for a day.please help me .

here a part of my view page


	   success: function(events)



		            $('#yw0').fullCalendar('addEventSource', events);


	   type: 'get',

	   url: '<?php echo $this->createUrl('renderattendance');?>',

	   cache: false,

	   data: {

		       year: year,

		       month: month,


	   dataType: 'json',