function getCookie(name, ret) {
    cookies = document.cookie;
    var start = cookies.indexOf(name + '=');
    if (start == -1) return ret;
    start = cookies.indexOf('=', start) + 1;
    var end = cookies.indexOf(';', start);
    if (end == -1) end = cookies.length;
    var value = unescape(cookies.substring(start, end));
    if (value == null) return ret;
    return value;
}

function setCookie(name, value, expires, path, domain, secure) {
    document.cookie = name + "=" + escape(value) +
    ((expires) ? "; expires=" + expires : "") +
    ((path) ? "; path=" + path : "") +
    ((domain) ? "; domain=" + domain : "") +
    ((secure) ? "; secure" : "");
}