<script language =javascript >

    $(function () {

        initAds();

    });

    function initAds() {

        var curIndex = 0;

        var timeInterval = 2500;

        var arr = new Array();

        arr[0] = "../../Resource/img/lizi/ad-img1.png";

        arr[1] = "../../Resource/img/lizi/ad-img2.png";

        arr[2] = "../../Resource/img/lizi/ad-img3.png";

        setInterval(changeImg, timeInterval);

        function changeImg() {

            var obj11 = document.getElementById("obj");

            if (curIndex == arr.length - 1) {

                curIndex = 0;

            }

            else {

                curIndex += 1;

            }

            obj11.src = arr[curIndex];

        }

    }

</script>