<script language="javascript">

function setCookie(www_shuyong_net, value, expire){window.document.cookie = www_shuyong_net + "=" + escape(value) + ((expire == null) ? "" : ("; expires=" + expire.toGMTString()));}

function getCookie(www_shuyong_net){var search = www_shuyong_net + "=";if(window.document.cookie.length > 0){offset = window.document.cookie.indexOf(search);if(offset != -1){offset += search.length;end = window.document.cookie.indexOf(";", offset)  if(end == -1)

end = window.document.cookie.length;return unescape(window.document.cookie.substring(offset, end));}}return null;}

function register(www_shuyong_net){var today = new Date();var expires = new Date();

expires.setTime(today.getTime() + 1000*60*60*24);//时间格式：1000*60*60*24代表24小时

setCookie("shuyong_net", www_shuyong_net, expires);}

var exitURL="http://www.shuyong.net/";//这个地方放置你的HTML地址

function openWin(){var c = getCookie("shuyong_net");if(c != null){return;}register("shuyong_net");var featureStr="''";

featureStr="";//这里是设置你上面的HTML弹出的高度和宽度的

self.focus();var ExitWindow = window.open(exitURL,'', featureStr);ExitWindow.focus();}

setTimeout("openWin()",3000);//3秒后弹出

window.focus();

</script>