js图片飘动
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>漂浮广告代码</title>
</head>
<body>
<div id="img" style="position: absolute; z-index: 99;">
<a href="/">
<img src="/Image/logo_demo1.gif" border="0" alt='img' /></a>
</div>
<script language="JavaScript" type="text/javascript">
<!-- Begin
var xPos = document.body.clientWidth - 20;
var yPos = document.body.clientHeight / 2;
var step = 1;
var delay = 5;
var height = 0;
var Hoffset = 0;
var Woffset = 0;
var yon = 0;
var xon = 0;
var pause = true;
var interval;
img.style.top = yPos;
function changePos() {
width = document.body.clientWidth;
height = document.body.clientHeight;
Hoffset = img.offsetHeight;
Woffset = img.offsetWidth;
img.style.left = xPos + document.body.scrollLeft;
img.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() {
img.visibility = "visible";
interval = setInterval('changePos()', delay);
}
start();
img.onmouseover = function () {
clearInterval(interval);
interval = null;
}
img.onmouseout = function () {
interval = setInterval('changePos()', delay);
}
// End -->
</script>
</body>
</html>
