/// </summary>
function LogoffMime()
{
    try
    {
        if ((typeof (mimeLogoffE2k3) != "undefined" && null != mimeLogoffE2k3) && IsMimeCtlInst("MimeBhvr.MimeCtlVer"))
            mimeLogoffE2k3.Logoff();

        if ((typeof (mimeLogoffE2k7SP1) != "undefined" && null != mimeLogoffE2k7SP1) && IsMimeCtlInst("OwaSMime.MimeCtlVer"))
            mimeLogoffE2k7SP1.Logoff();

        if ((typeof (mimeLogoffE2k9) != "undefined" && null != mimeLogoffE2k9) && IsMimeCtlInst("OwaSMime2.MimeCtlVer"))
            m