记录cookies实现退出弹出“加入收藏”代码
  [code]<script language="javascript" type="text/javascript">
function bookmark()
{
if(readCookie("bookmark")!="yes")
{
saveCookie("bookmark","yes",1);
window.external.AddFavorite('http://www.suanbu.com, '算卜网);
}
}

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>[/code]