//滚动显示更多
var scroll_get = true;  //做个标志,不要反反复复的加载
$(document).ready(function () {
    $(window).scroll(function () {
        if (scroll_get==true &&  (400 + $(window).scrollTop())>($(document).height() - $(window).height())) {
            scroll_get = false;
            layer.msg('内容加截中,请稍候',{time:1000});
            dr_ajax_load_more();
        }
    });
});