Callback events

$('#fall').popup({
        beforeopen: function () {
            alert('beforeopen');
        },
        onopen: function () {
            alert('onopen');
        },
        onclose: function () {
            alert('onclose');
        },
        opentransitionend: function () {
            alert('opentransitionend');
        },
        closetransitionend: function () {
            alert('closetransitionend');
        }
    });