漂浮广告代码--Js演示实例

浏览数：45 / 时间：2015年06月09日

漂浮广告专用的代码，复制到网页中即可使用，具体参考如下的例子。

<html>
<head>
<title>漂浮广告代码</title>
</head>
<body>
<div id="img" style="position:absolute;z-index=99;">
<img src="/jscss/demoimg/logo_demo1.gif" onClick="pause_resume();" border="0" alt=‘img‘ width=100 height="100">
</div>

<SCRIPT LANGUAGE="JavaScript">
<!-- Begin
var xPos = document.body.offsetWidth;
var yPos = document.body.clientHeight/2;

var step = 1;
var delay = 50; 
var height = 0;
var Hoffset = 0;
var Woffset = 0;
var yon = 0;
var xon = 0;
var pause = true;
var interval;
img.style.top = yPos;
alert(xPos) 
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);
}
function pause_resume() {
if(pause) {
clearInterval(interval);
pause = false;
}else {
interval = setInterval(‘changePos()‘,delay);
pause = true;
}
}
start();
// End -->
</script>
</body>
</html>