jquery实现的动画上下闪动

        function shantuhanshu() {
            $("#shantu").animate({ "top": "-=4px", "opacity": "1" }, 500);
            $("#shantu").animate({ "top": "+=4px", "opacity": "1" }, 500);
            $("#shantu").animate({ "top": "-=4px", "opacity": "1" }, 500);
            $("#shantu").animate({ "top": "+=4px", "opacity": "1" }, 500);
        };
        function shantuhanshuyi() {
            $("#shantu1").animate({ "top": "-=4px", "opacity": "1" }, 500);
            $("#shantu1").animate({ "top": "+=4px", "opacity": "1" }, 500);
            $("#shantu1").animate({ "top": "-=4px", "opacity": "1" }, 500);
            $("#shantu1").animate({ "top": "+=4px", "opacity": "1" }, 500);
        }
        function shantuhanshuer() {
            $("#shantu2").animate({ "top": "-=4px", "opacity": "1" }, 500);
            $("#shantu2").animate({ "top": "+=4px", "opacity": "1" }, 500);
            $("#shantu2").animate({ "top": "-=4px", "opacity": "1" }, 500);
            $("#shantu2").animate({ "top": "+=4px", "opacity": "1" }, 500);
        }

        //多少时间后执行一次
        function setInterval1() {
            setTimeout("shantuhanshu()", 3000);
        }
        function setInterval2() {
            setTimeout("shantuhanshuyi()", 6000);
        }
        function setInterval3() {
            setTimeout("shantuhanshuer()", 9000);
        }
        function setInterval123() {
            setInterval1();
            setInterval2();
            setInterval3();
        }

        //多少秒之后反复执行
        $(function () {

            setInterval(function () {
                setInterval123();
            }, 9000);
            //movewenzi();
        });