文字在网页上下浮动 学习可以不建议用

  作者:bea

<html> <head> <title>上下跳动的文本</title> </head> <body> <script language="JavaScript"> <!-- done = 0; step = 4 function anim(yp,yk) { if(document.layers) document.layers["napis"].top=yp; else docume


<html>
<head>
<title>上下跳动的文本</title>
</head>
<body>
<script language="JavaScript">
<!--
done = 0;
step = 4
function anim(yp,yk)
{
if(document.layers) document.layers["napis"].top=yp;
else document.all["napis"].style.top=yp;

if(yp>yk) step = -4
if(yp<60) step = 4

setTimeout('anim('+(yp+step)+','+yk+')', 10);
}
function start()
{
if(done) return
done = 1;

if(navigator.appName=="Netscape") {
document.napis.left=innerWidth/2 - 145;
anim(60,innerHeight - 60)
}
else {
napis.style.left=280;
anim(60,document.body.offsetHeight - 60)
}

}

//-->
</script>
<div id="napis"
style="position: absolute; top: 159px; width: 400px; height: 78px; left: 215px"><font size="5">
<font face="华文行楷"><b>
</b></div>
<script language="JavaScript">
<!--
setTimeout('start()',10);
//-->
</script>
</body>
</html>




[Ctrl+A 全选 注:
如需引入外部Js需刷新才能执行]



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