$(function(){
    ua.listen();

    // 关闭按钮：弹窗内关闭当前 iframe；非弹窗场景（直接以标签页打开）返回上一页
    $('#notice-read-close').on('click', function () {
        var parentLayer = (window.parent && window.parent.layui) ? window.parent.layui.layer : null;
        if (parentLayer) {
            var index = parentLayer.getFrameIndex(window.name);
            if (index !== undefined && index !== null) {
                parentLayer.close(index);
                return;
            }
        }
        history.back();
    });
})