js读写cookie
//JS操作cookies方法!
//写cookies
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();
}
//读取cookies
function
getCookie(name)
{
var arr,reg=new RegExp("(^|
)"+name+"=([^;]*)(;|$)");
if(arr=document.cookie.match(reg)) return
unescape(arr[2]);
else return null;
}
//删除cookies
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();
}