爱华网Js漂浮广告代码，比较经典的浮动广告，到现还很实用，如果你是一位站长的话，这种代码是必备的，希望对你有用处。
代码如下：
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>漂浮广告</title>
</head>
<body>
<DIV id=img1 style="Z-INDEX: 100; LEFT: 2px; WIDTH: 59px; POSITION: absolute; TOP: 43px; HEIGHT: 61px;
?visibility: visible;"><a href="/jscss/" target="_blank"><img src="/jscss/demoimg/200908/pic.gif" width="80" height="80" border="0"></a></DIV>
<SCRIPT>
var xPos = 300;
var yPos = 200;?
var step = 1;
var delay = 30;?
var height = 0;
var Hoffset = 0;
var Woffset = 0;
var yon = 0;
var xon = 0;
var pause = true;
var interval;
img1.style.top = yPos;
function changePos()?
{
width = document.body.clientWidth;
height = document.body.clientHeight;
Hoffset = img1.offsetHeight;
Woffset = img1.offsetWidth;
img1.style.left = xPos + document.body.scrollLeft;
img1.style.top = yPos + document.body.scrollTop;
if (yon)?
{yPos = yPos + step;}
else?
{yPos = yPos - step;}
if (yPos < 0)?
{yon = 1;yPos = 0;}
if (yPos >= (height - Hoffset))?
{yon = 0;yPos = (height - Hoffset);}
if (xon)?
{xPos = xPos + step;}
else?
{xPos = xPos - step;}
if (xPos < 0)?
{xon = 1;xPos = 0;}
if (xPos >= (width - Woffset))?
{xon = 0;xPos = (width - Woffset); ? }
}
function start()
{
img1.visibility = "visible";
interval = setInterval('changePos()', delay);
}
function pause_resume()?
{
if(pause)?
{
clearInterval(interval);
pause = false;}
else?
{
interval = setInterval('changePos()',delay);
pause = true;?
}
}
start();
</SCRIPT>
</body>
</html>
