Chat::getAvatarId

static function getAvatarId($avatarId)
{
	$avatar = File::getFileArray($avatarId);
	if ($avatar)
	{
		$avatarId = (int)$avatar['ID'];
		File::releaseFile($avatarId);
	}
	else
	{
		$avatarId = 0;
	}

	return $avatarId;
}