function statusMessage(message, isError)
{
    message = (isError == true) ? '<span class="error">' + message + '</error>' : message;
    
    $('status_message').update(message);
    
    Effect.Appear('status_message', { duration: 0.5 });
    
    fadeAway = function()
    {
        Effect.SwitchOff('status_message');
    }
    
    window.setTimeout('fadeAway()', 8000);
}