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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>符合XHTML标准的漂浮广告代码(浮动广告代码)</title>
</head>
<body>
<div id="ad" style="position:absolute">
<a href="http://#" target="_blank"><img src="<a href="" border="0"></a>
</div>
<script>
var x = y = 0;
var xin = true, yin = true
var step = 2;
var delay = 1;
var obj = document.getElementById("ad");
function floatAD(){
var L = 0;
var T = (document.body.scrollTop?document.body.scrollTop:document.documentElement.scrollTop);
var R = document.body.clientWidth-obj.offsetWidth;
var B = T + ((document.body.clientHeight > document.documentElement.clientHeight)?document.documentElement.clientHeight:document.body.clientHeight) - obj.offsetHeight;
obj.style.left = x + document.body.scrollLeft;
obj.style.top = y + document.body.scrollTop;
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) }
</script>
<p>Test</p><p>Test</p><p>Test</p>
<p>Test</p><p>Test</p><p>Test</p>
<p>Test</p><p>Test</p><p>Test</p>
<p>Test</p><p>Test</p><p>Test</p>
<p>Test</p><p>Test</p><p>Test</p>
<p>Test</p><p>Test</p><p>Test</p>
<p>Test</p><p>Test</p><p>Test</p>
<p>Test</p><p>Test</p><p>Test</p>
<p>Test</p><p>Test</p><p>Test</p>
<p>Test</p><p>Test</p><p>Test</p>
<p>Test</p><p>Test</p><p>Test</p>
<p>Test</p><p>Test</p><p>Test</p>
<p>Test</p><p>Test</p><p>Test</p>
<p>Test</p><p>Test</p><p>Test</p>
<p>Test</p><p>Test</p><p>Test</p>
<p>Test</p><p>Test</p><p>Test</p>
<p>Test</p><p>Test</p><p>Test</p>
<p>Test</p><p>Test</p><p>Test</p>
<p>Test</p><p>Test</p><p>Test</p>
<p>Test</p><p>Test</p><p>Test</p>
<p>Test</p><p>Test</p><p>Test</p>
<p>Test</p><p>Test</p><p>Test</p>
<p>Test</p><p>Test</p><p>Test</p>
<p>Test</p><p>Test</p><p>Test</p>
</body>
</html>