$(document).ready(function() {

    var calendar = $('#calendar').fullCalendar({

    editable: true,

    header: {
        left: 'prev,next,today',
        right: 'month,agendaWeek,agendaDay'
    },

    events: "appointment_feed.php",

    selectable: true,

    selectHelper: true,

    select: function(start, end, allDay) {

        $("#dialog-form").dialog({ modal: true, width:450});

        var date = $.fullCalendar.formatDate(start, 'YYYY-MM-DD');

        $("#fecha").val(date);
    }

    });
});