// given a cookie name ckName, get its value from CookieCollection cookies
    public bool getCookieVal(string ckName, ref CookieCollection cookies, out string ckVal)
    {
        //string ckVal = "";
        ckVal = "";
        bool gotValue = false;

        foreach (Cookie ck in cookies)
        {
            if (ck.Name == ckName)
            {
                gotValue = true;
                ckVal = ck.Value;
                break;
            }
        }

        return gotValue;
    }