function calculatestartorend(){
var _date = $('#date').val();
var _day = $('#day').val();
if(_day !=''&&_day !=null&&_date !=''&&_date !=null){
var date= new Date(_date );
date.setDate(date.getDate() + parseInt(_day));
var free_end=date.getFullYear()+"-"+((date.getMonth()+1)<10?"0"+(date.getMonth()+1):(date.getMonth()+1))+"-"+(date.getDate()<10?"0"+date.getDate():date.getDate());
$('#dataEnd"]').val(free_end);
}
}