ajax傳值問題

pageInit: function(e) {
        var appointmentId = e.data.appointmentId;
        var conferenceId = e.data.conferenceId;
        huiguPost(function(el) {
            conferenceApplyAction.prodParams.orderState = el.data.orderState;
            $(".conference-order-payCount").html(_.template($("#conference-order-payCount").html())({ data: el.data }))
            conferenceApplyAction.closeTime=el.data.appointEndTime
            conferenceApplyAction.countDown(el);
        },
        huiguPostUrl.queryOrderDetails, {
            appointmentId: optUrlParams("conferenceId")
        });
        console.log(conferenceApplyAction.prodParams.orderState);
    },

huiguPost是封裝的ajax，沒法修改。
如何讓el.data.appointEndTime傳到全局變量。