JS操作COOKIE

//set cookie
   
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();
}

function getcookie(name){
    var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)")); 
    if(arr != null){
        return unescape(arr[2]);
    }else{
        return "";
    }
}

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();
}

//delcookie("GD-cms");
if (document.cookie != "") { 
    setcookie("GD-cms", "gae-django-cms");
}
alert(getcookie("GD-cms"));