<div id="fudongand" style="position:absolute;"><!--一定要写宽度-->
<script type="text/javascript">
function hidefudongand(){
document.getElementById("fudongand").style.display="none";
}
</script>
   <div>
   <a href='<%=imgUrl%>' target="_blank"><!--imgUrl, imgSrc,imgWidth,imgHeight 这些只是后置代码中受保护的变量对象。-->
      <img src='<%=imgSrc%>' alt="" border="0" width='<%=imgWidth%>' height='<%=imgHeight%>' />
   </a>
   </div>
   <div width='<%=imgWidth%>' style="text-align:right">
   <span style="CURSOR:pointer;color:red;" οnclick="hidefudongand();">关闭</span>
   </div>  
</div>
<script type="text/javascript">
   var x = 50,y = 60;
   var xin = true, yin = true;
   var step = 1;//层移动的步长，值越大移动速度越快
   var delay = 20;//层移动的时间间隔,单位为毫秒，值越小移动速度越快
   var obj=document.getElementById("fudongand");
   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;}
   }
   //如果需要显示漂浮广告，请注释掉下面这行代码，然后回复下面那三条已经注释掉的代码
   //document.getElementById("fudongand").style.display="none";
   var itl= setInterval("floatAD()", delay);
   obj.οnmοuseοver=function(){clearInterval(itl)}
   obj.οnmοuseοut=function(){itl=setInterval("floatAD()", delay)}
</script>