設置cookie
document.cookie="name="+username;
function setCookie(name,value)
{
var Days = 30;
var exp = new Date();
exp.setTime(exp.getTime() + Days*24*60*60*1000);
document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();
}
獲取cookie
function getCookie(name)
{
var arr,reg=new RegExp("(^| )"+name+"=([^;]*)(;|$)");
if(arr=document.cookie.match(reg))
return unescape(arr[2]);
else
return null;
}
刪除cookie
function delCookie(name)
{
var exp = new Date();
exp.setTime(exp.getTime() - 1);
var cval=getCookie(name);
if(cval!=null)
document.cookie= name + "="+cval+";expires="+exp.toGMTString();
}
刪除所有cookie
function delCookie () {
var keys = document.cookie.match(/[^ =;]+(?==)/g)
if (keys) {
for (var i = keys.length; i--;) {
document.cookie = keys[i] + '=0;path=/;expires=' + new Date(0).toUTCString() // 清除當前域名下的,例如:m.ratingdog.cn
document.cookie = keys[i] + '=0;path=/;domain=' + document.domain + ';expires=' + new Date(0).toUTCString() // 清除當前域名下的,例如 .m.ratingdog.cn
document.cookie = keys[i] + '=0;path=/;domain=ratingdog.cn;expires=' + new Date(0).toUTCString() // 清除一級域名下的或指定的,例如 .ratingdog.cn
}
}
}