图片飞舞效果

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网页特效分类 >> 图形特效

图片飞舞效果

[ 发布者：luwei | 来源：本站整理 | 时间：2005-10-26 | 浏览：人次 ]

<html>
<head>
<title>网页特效|JcwCn.Com/Js|---图片飞舞效果</title>
</head><body>双击滚动,单击停止<br>
<!--将以下代码加入HTML的<Body></Body>之间-->

<div id="img" style="position:absolute;">
<img src="images/flag.gif" tppabs="http://sc.jcwcn.com/tx/JsHtml/images/flag.gif"
onClick="pause_resume();" width="85" height="55">
</div>
<SCRIPT LANGUAGE="JavaScript">
<!-- Begin
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.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>

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