public static void WriteCookie(String name, String value, Int32 days)
{
string expires = "";
if (days > 0)
{
Date date = new Date();
date.SetTime(date.GetTime() + (days * 24 * 60 * 60 * 1000));
expires = "; expires=" + date.ToUTCString();
}
Document.Cookie = name + "=" + value + expires + "; path=/";
}