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#2
szgg5202012-09-27 22:26
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我才开始学习网页，想做一个浮动的小窗口，自己不会写。就在网上复制了一份浮动窗口的代码，当窗口浮动到网页右边缘时会发生如下变化
希望师兄师姐们指教下怎么修改，才能让他到了边缘时不发生变化！在此无比感谢。
<!--浮动广告-->
<style type="text/css">
#fdck {border:1px solid #c0c0c0;margin:0 auto;padding:5px;background:#f0f0f0}
</style>
<body>
<div id="img" style="position: absolute; left: 311; top: 815;visibility :hidden;" onmouseover="clearInterval(interval)" onmouseout="interval = setInterval('changePos()', delay)" align="middle">
<span style="CURSOR:hand;color:red;font-weight:bold;font-size:12px" onclick="clearInterval(interval);img.style.visibility = 'hidden'">关闭</span>
<div id="fdck">
<ul>
<li><b><td><a href="http://www.妙安科技</a> </td></b></li>
</ul>
</div>
</div>
<script type="text/javascript">
var xPos = 20;
var yPos = document.body.clientHeight;
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;
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.style.visibility = "visible";
interval = setInterval('changePos()', delay);
}
start();
</script>
</body>
<!--浮动广告-->