jquery设置cookie过期时间与检查cookies是否可用

让cookies在x分钟后过期

var date = new date();
date.settime(date.gettime() + (x * 60 * 1000));
$.cookie(‘example', ‘foo', { expires: date });

检查cookies是否可用

$(document).ready(function() {var dt = new date();dt.setseconds(dt.getseconds() + 60);document.cookie = “cookietest=1; expires=” + dt.togmtstring();var cookiesenabled = document.cookie.indexof(“cookietest=”) != -1;if(!cookiesenabled){//cookies不能用……..}});