function createCookie()
{

    SetCookie("FlashCookie","1");
}

function getCookie()
{
    return GetCookieValue("FlashCookie");
}

// the cookie will expires immediately when the window be closed.
function SetCookie(sName, sValue)
{
document.cookie = sName + "=" + escape(sValue) +";";
}

function GetCookieValue(sName)
{
    // cookies are separated by semicolons
    var aCookie = document.cookie.split("; ");
    for (var i=0; i < aCookie.length; i++)
    {
        // a name/value pair (a crumb) is separated by an equal sign
        var aCrumb = aCookie[i].split("=");
        if (sName == aCrumb[0])
        {
            return unescape(aCrumb[1]);
        }
    }
    return null;
}