Javascript 飞动的广告

来源：互联网发布：一号防线监控软件编辑：程序博客网时间：2024/05/09 08:40

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>飞动的广告</title>
    <style type="text/css">
        body,div,p
        {
            margin:0;
            padding:0;
            font-size:14px;
        }
        #divMain
        {
            width:200px;
            height:800px;
        }
    </style>
    <script type="text/javascript">
        var tmrID;
        var x = 1;
        var y = 1;
        function moveAD() {
            var divFly = document.getElementById("divFly");
            var moveX = parseInt(divFly.style.left) + x * 5;
            var moveY = parseInt(divFly.style.top) + y * 5;
            //divFly.offsetWidth

            if ((moveX + divFly.offsetWidth) >= document.body.clientWidth) {
                x = -1;
            }

            if ((moveY + divFly.offsetHeight) >= document.body.clientHeight) {
                y = -1;
            }

            if (moveX <= 0) {
                x = 1;
            }

            if (moveY <= 0) {
                y = 1;
            }

            divFly.style.left = moveX;
            divFly.style.top = moveY;
        }
        function ClearTimer() {
            clearInterval(tmrID);
        }
        function fly() {
            tmrID = setInterval(moveAD, 20);
        }
        window.onload = function () {
            var divFly = document.getElementById("divFly");
            divFly.onmouseover = function () {
                ClearTimer();
            }
            divFly.onmouseout = function () {
                fly();
            }
            fly();
        }
        function closeAD() {
            ClearTimer();
            var divFly = document.getElementById("divFly");
            divFly.style.display = "none";
        }
    </script>
</head>
<body>
    <div id="divMain"></div>
    <div id="divFly" style="position:absolute;top:0;left:0;border:1px solid green;">
        <img src="../images/fly.gif" height="60px" width="60px" />
        <p><a href="javascript:void(0)" onclick="closeAD()">关闭</a></p>
    </div>
</body>
</html>