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if ($data) {
	$sql = "SELECT * FROM " . DB_PREFIX . "language";

	$sort_data = array(
		'name',
		'code',
		'sort_order'
	);	

	if (isset($data['sort']) && in_array($data['sort'], $sort_data)) {
		$sql .= " ORDER BY " . $data['sort'];	
	} else {
		$sql .= " ORDER BY sort_order, name";	
	}

	if (isset($data['order']) && ($data['order'] == 'DESC')) {
		$sql .= " DESC";
	} else {
		$sql .= " ASC";
	}

	if (isset($data['start']) || isset($data['limit'])) {
		if ($data['start'] < 0) {
			$data['start'] = 0;
		}					

		if ($data['limit'] < 1) {
			$data['limit'] = 20;
		}	

		$sql .= " LIMIT " . (int)$data['start'] . "," . (int)$data['limit'];
	}

	$query = $this->db->query($sql);

	return $query->rows;
} else {
	$language_data = $this->cache->get('language');

	if (!$language_data) {
		$language_data = array();

		$query = $this->db->query("SELECT * FROM " . DB_PREFIX . "language ORDER BY sort_order, name");

		foreach ($query->rows as $result) {
			$language_data[$result['code']] = array(
				'language_id' => $result['language_id'],
				'name'        => $result['name'],
				'code'        => $result['code'],
				'locale'      => $result['locale'],
				'image'       => $result['image'],
				'directory'   => $result['directory'],
				'filename'    => $result['filename'],
				'sort_order'  => $result['sort_order'],
				'status'      => $result['status']
			);
		}

		$this->cache->set('language', $language_data);
	}

	return $language_data;			
}