<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
</head>
<body>
<div align="center">
<p id="mytext" style="width:900" align="right">hello,world!</p>
<P>this is a nother test</p>
</div>
<script type="text/javascript">
var i=200;
test();
function test()
{
document.getElementById("mytext").style.marginRight=i;
i+=2;
if(i>=1000)
i=200;
setTimeout("test()",10);
}
</script>
</body>
</html>
欢迎各位大神斧正我的代码。