beforeShowDay: function (date) {
var day = date.getDate() < 10 ? '0' + date.getDate() : date.getDate();
var month = date.getMonth() < 10 ? '0' + date.getMonth() : date.getMonth();
var year = date.getFullYear();
var formattedDate = month.toString() + '/' + day.toString() + '/' + year.toString();
var valid = ($.inArray(formattedDate, disableDates)) === -1;
var _class = '';
var _tooltip = valid ? '' : 'This Date is disable';
return [valid, _class, _tooltip];
},