<html>
<head>
<title>广告页面</title>
<style type="text/css">
body{
background-image:url(new.jpg);
background-repeat:no-repeat;
}
</style>
</head>
<body></body>
</html>(2)在需要弹出广告窗口的页面中，判断客户端浏览器中是否存在指定的Cookie，如果不存在，则弹出新窗口显示广告信息，否则不弹出广告信息。<html>
<head>
<title>Cookie控制</title>
<script>
function openWindow()
{
window.open("new.html","new","width = 352","height = 193");
}
function GetCookie(name)
{
var search = name + "=";
var returnvalue = "";
var offset , end;
if(document.cookie.length>0)
{
offset = document.cookie.indexOf(search);
if(offset != -1)
{
offset += search.length;
end = document.cookie.indexOf(";",offset);
if(end == -1)
end = document.cookie.length;
returnvalue = unescape(document,cookie,substring(offset,end));
}
}
return returnvalue;
}
function LoadPop()
{
if(GetCookie("pop")=="")
{
openWindow();
var today = new Date();
var time = "Monday,11-May"+today.getYear()+1+"13:20:00 GMC";
document.cookie = "pop=yes;expires="+time;
}
}
</script>
</head>
<body onLoad = "LoadPop()"></body>
</html>
JavaScript特效实例006-弹出的窗口之Cookie控制
原文：http://blog.csdn.net/yejinwei1220/article/details/45642761