function onTimeOut(result) {
    if (result._timedOut) {
        alert("The request has timed out.  Please try again later.  We apologize for any inconvenience.");
        $.unblockUI();
    }
    else {
        alert("Error #" + result._statusCode + ":\n\n" + result._message);
        $.unblockUI();
    }
}

function onError(result)
{ alert("Timeout Error: " + result._message); $.unblockUI(); }

function SubmitNewsletter(emailaddress, postback)
{ var email = emailaddress + ''; healthfitlabs.com.service.SubmitNewsletter(email, postback, onTimeOut, onError); }