function SetCookie(name, value, exp_y, exp_m, exp_d, path, domain, secure)
{
    var cookie_string = name + "=" + escape(value);

    if (exp_y)
    {
        var expires = new Date(exp_y, exp_m, exp_d);
        cookie_string += "; expires=" + expires.toGMTString();
    }

    if (path)
    {
        cookie_string += "; path=" + escape(path);
    }

    if (domain)
    {
        cookie_string += "; domain=" + escape(domain);
    }

    if (secure)
    {
        cookie_string += "; secure";
    }

    document.cookie = cookie_string;
}

function DeleteCookie(cookie_name)
{
    var cookie_date = new Date();  // current date & time
    cookie_date.setTime(cookie_date.getTime() - 1);
    document.cookie = cookie_name + "=; expires=" + cookie_date.toGMTString();
}


function GetCookie(cookie_name)
{
    var results = document.cookie.match('(^|;) ?' + cookie_name + '=([^;]*)(;|$)');

    if (results)
    {
        return (unescape(results[2]));
    }
    else
    {
        return null;
    }
}