Cookie保存和获取

//getCookie 得到指定名称的cookie的值var bikky = document.cookie;function getCookie(name) {     var index = bikky.indexOf(name + "=");    if (index == -1) return null;    index = bikky.indexOf("=", index) + 1;    var endstr = bikky.indexOf(";", index);    if (endstr == -1) endstr = bikky.length;    return unescape(bikky.substring(index, endstr));}//设置保存cookie的时间为3秒的方法//setCookie//var Days = 60; //cookie 将被保存两个月   //var exp = new Date(); //获得当前时间   //exp.setTime(exp.getTime() + Days * 24 * 60 * 60 * 1000); //换成毫秒 function setCookie(name, value) { var exp = new Date(); //获得当前时间   exp.setTime(exp.getTime() +  3*1000); //换成  1000代表毫秒  3*1000是3秒    if (value != null && value != "")      document.cookie=name + "=" + escape(value) + "; expires=" + exp.toGMTString();}