public function subscribes($data) {
		$this->db->query("INSERT INTO " . DB_PREFIX . "ar_letters(email_user,email_date) values ('".$data['email']."','".date("Y-m-d")."')");
	}
		
		
	public function getTotalCustomersByEmail($data) {
		$query = $this->db->query("SELECT email_user FROM " . DB_PREFIX . "ar_letters where email_user='".$data['email']."'");
	return $query->row;
	}