方式一:

<html>

<h2>8秒后跳转到门户网......</h2>

<SCRIPT type="text/javascript">

var secNum = 8;

function timingRedirect() {

secNum = secNum - 1;

if (secNum > 0) {

setTimeout("timingRedirect();", 1000);

} else {

window.location.href = "http://gzw.jiangxi.gov.cn/";

}

}

setTimeout("timingRedirect();", 1000);

</SCRIPT></html>

方式二:

<head>
<meta http-equiv="refresh" content="20;url=http://gzw.jiangxi.gov.cn/">

</head>
其中20是指隔20秒后自动跳转到http://gzw.jiangxi.gov.cn/