var today = new Date();
var expires = new Date(today.getTime() + 3600000 * 24 * 365);

function GetCookie(name) {
    var cookies = "; " + document.cookie + ";";
    var search = "; " + name + "=";
    var begin = cookies.indexOf(search);
    if (begin < 0) {
        return null;
    }
    begin += search.length;
    return unescape(cookies.substring(begin, cookies.indexOf(";", begin)));
}

function SetCookie(name, value) {
    document.cookie = name + "=" + escape(value) + "; expires=" + expires.toGMTString();
}