gistfile1.txt

    if (autoRefreshTimer == nil && interval) {
        NSTimeInterval diff = interval - [now timeIntervalSinceDate:lastRefreshDate];
        if (diff <= 0) {
            if (!IS_IPAD) {
                [self forceRefresh];
            }
        }
        else {
            [self setNextTimer:diff];
        }
    }