// 設(shè)置cookie在當(dāng)天指定時(shí)間點(diǎn)過(guò)期并提示
function setCookie(name,value,Deadline,callback){
// 獲取當(dāng)前日期對(duì)象
var curDate = new Date();
// 獲取當(dāng)前日期對(duì)應(yīng)的時(shí)間戳
var curTime = curDate.getTime();
// 獲取指定時(shí)間的時(shí)間戳
var endTime = convertTime(curDate,Deadline);
// 計(jì)算出指定時(shí)間與當(dāng)前時(shí)間的時(shí)間差
var disTime = endTime - curTime;
// 設(shè)置cookie過(guò)期時(shí)間
document.setCookie = name + '=' + value + ';expires=' + disTime;
// 在指定時(shí)間到達(dá)后執(zhí)行回調(diào)
setTimeout(callback,disTime);
}
setCookie('name','value','24:00:00',function(){
alert('cookie過(guò)期了');
});
// 獲取指定時(shí)間的時(shí)間戳
function convertTime(nowDate,Deadline){
// 分割參數(shù)Deadline
var _dateArr = Deadline.split(':');
// 分別獲取參數(shù)中對(duì)應(yīng)的時(shí)、分、秒
var hours = parseInt(_dateArr[0]);
var minutes = parseInt(_dateArr[1]);
var seconds = parseInt(_dateArr[2]);
// 設(shè)置對(duì)應(yīng)時(shí)分秒
nowDate.setHours(hours); 
nowDate.setMinutes(minutes); 
nowDate.setSeconds(seconds);
// 獲取當(dāng)前天中指定時(shí)分秒對(duì)應(yīng)的毫秒數(shù)
var result = Date.parse(nowDate);
return result;
}

function setCookie(name,value,days){//設(shè)置cookie
var d = new Date();
d.setTime(d.getTime() + (days*24*60*60*1000));
var expires = "expires="+d.toUTCString();
document.cookie = name + "=" + value + "; " + expires;
}