网页特效”漂浮广告代码”来回跳动的

&lt;div id="ad" style="position:absolute"&gt;&lt;a href="http://www.cnblog.com/wayne173" target="_blank"&gt;&lt;img src="http://static.cnblogs.com/images/adminlogo.gif" border="0"&gt;&lt;/a&gt;&lt;/div&gt;&lt;script type="text/javascript"&gt;var x = 50,y = 60;var xin = true, yin = true;var step = 1;var delay = 10;var obj=document.getElementById("ad");function floatAD() {var L=T=0;var R= document.body.clientWidth-obj.offsetWidth;var B = document.body.clientHeight-obj.offsetHeight;obj.style.left = x + document.body.scrollLeft + "px";obj.style.top = y + document.body.scrollTop + "px";x = x + step*(xin?1:-1);if (x < L) { xin = true; x = L;}if (x > R){ xin = false; x = R;} y = y + step*(yin?1:-1); if (y < T) { yin = true; y = T; } if (y > B) { yin = false; y = B; } }var itl= setInterval(floatAD, delay); obj.onmouSEOver=function(){clearInterval(itl);} obj.onmouseout=function(){itl=setInterval(floatAD, delay);}&lt;/script&gt;&lt;SCRIPT LANGUAGE="Javascript"&gt; var s = "网页可见区域宽 ："+ document.body.clientWidth; s += "/r/n网页可见区域高："+ document.body.clientHeight; s += "/r/n网页可见区域高："+ document.body.offsetHeight +" (包括边线的宽)"; s += "/r/n网页正文全文宽："+ document.body.scrollWidth; s += "/r/n网页正文全文高："+ document.body.scrollHeight; s += "/r/n网页被卷去的高："+ document.body.scrollTop; s += "/r/n网页被卷去的左："+ document.body.scrollLeft; s += "/r/n网页正文部分上："+ window.screenTop; s += "/r/n网页正文部分左："+ window.screenLeft; s += "/r/n屏幕分辨率的高："+ window.screen.height; s += "/r/n屏幕分辨率的宽："+ window.screen.width; s += "/r/n屏幕可用工作区高度："+ window.screen.availHeight; s += "/r/n屏幕可用工作区宽度："+ window.screen.availWidth; document.write(s); &lt;/script&gt;

http://www.cnblog.com/wayne173 //换成是漂浮图片点击后出现的页面，也就是点击后出现的详细的介绍页面

http://static.cnblogs.com/images/adminlogo.gif//换成是漂浮广告图片的URL地址，最好采用绝对路径var x = 50,y = 60 //浮动层的初始位置，分别对应层的初始X坐标和Y坐标var xin = true, yin = true //判断层的X坐标和Y坐标是否在在控制范围之内，xin为真是层向右移动，否则向左；yin为真是层向下移动，否则向上var step = 1 //层移动的步长，值越大移动速度越快var delay = 10 //层移动的时间间隔,单位为毫秒，值越小移动速度越快