jquery实现页面百叶窗走马灯式翻滚显示效果的方法

                            var nowN=arg.children(n);
                            nowN.eq(nowN.length-1).after(nowN.eq(0));
                            //第一个位置空出后需要通过倒卷修正回来
                            arg.scrollTop(-h);
                        };
                    },vLimit);
        };
        var fnRollArr=function(arg){//对数组中的对象逐一启动卷动
            var out=setInterval(function(){
                fnRollFirst(arg.shift());
                if(!arg.length){
                    clearInterval(out);
                };
            },rt);     
        };
        var fnRoll=function(){//获得需要逐个卷动的对象集合
            var arr=new Array();
            e.children(o).each(function(){
                var rn=$(this).children(n);
                if(rn.length>1){
                    arr.push($(this));
                };
            });
            setInterval(function(){
                fnRollArr(arr.slice(0));