記錄cookies實現退出網頁時彈出“加入收藏”的代碼：
<script language="java script" type="text/java script">
function bookmark()
{
if(readCookie("bookmark")!="yes")
{
saveCookie("bookmark","yes",1);
window.external.AddFavorite('這裏輸入需要收藏的網站網址, '關鍵詞);
}
}
function saveCookie(name,value,days) {
if (days) {
var date = new Date();
date.setTime(date.getTime()+(days*24*60*60*1000))
var expires = "; expires="+date.toGMTString()
}
else expires = ""
document.cookie = name+"="+value+expires+"; path=/"
}
function readCookie(name) {
var nameEQ = name + "="
var ca = document.cookie.split(';')
for(var i=0;i<ca.length;i++) {
var c = ca[i];
while (c.charAt(0)==' ') c = c.substring(1,c.length)
if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length)
}
return null
}
</script>
<body onUnload="bookmark()">
</body>