Method dontCreateThumb

public static function dontCreateThumb($filename)
{
    $dontCreateThumb = false;
    $dontCreateThumbArray = array('watermark-large.png', 'watermark-medium.png');
    foreach ($dontCreateThumbArray as $key => $value) {
        if (strtolower($filename) == strtolower($value)) {
            return true;
        }
    }
    return false;
}