public function send_email()
	{
		$nbenvoi = 0;
	
		//nbre total de mails
		$sql_c = 'SELECT count(u_nickname)
				FROM ' . SQL_PREFIX . 'users
				WHERE u_newsletter = 1';
		$result_c = Fsb::$db->query($sql_c);
		$row_c = Fsb::$db->fetch_row($result_c);
		$total = $total[0];
		
		//prochain numéro de paquet à envoyer
		$numpaquet = 1;

		//nombre de mails par paquet
		$nb = 100;
		
		//determine le nombre de paquet de 100 mails à envoyer (arrondi a l'entier superieur)
		$nbpaquet = ceil($total/$nb);
		
		//on envoie les paquets 1 par 1 avec 30 secondes de delai entre chacun  
		for ($i=1; $i<=$nbpaquet; $i ++)
		{
			$debut = ($numpaquet-1) * $nb;
			
			// On récupère la liste des membres souscrits à la newsletter
			$sql = ("SELECT u_nickname, u_email, u_language
				FROM " . SQL_PREFIX . "users
				WHERE u_newsletter = 1 LIMIT " . $debut . ", " . $nb);
			$result = Fsb::$db->query($sql);
			$newsletter = array();
			while ($row = Fsb::$db->row($result))
			{
				if (!isset($newsletter[$row['u_language']]))
				{
					$newsletter[$row['u_language']] = array();
				}
				$newsletter[$row['u_language']][] = $row['u_email'];
			}
			Fsb::$db->free($result);

			// Envoie de la newsletter
			foreach ($newsletter AS $language => $mail_list)
			{
				$mail = new Notify_mail();
				foreach ($mail_list AS $bcc)
				{
					$mail->AddBCC($bcc);
				}

				$mail->Subject = (Http::request('pm_newsletter_subject', 'post')) ? Http::request('pm_newsletter_subject', 'post') : Fsb::$session->lang('no_subject');
				$mail->set_file(ROOT . 'lang/' . $language . '/mail/newsletter.txt');
				$mail->set_vars(array(
					'FORUM_NAME' =>		Fsb::$cfg->get('forum_name'),
					'CONTENT' =>		htmlspecialchars(Http::request('pm_newsletter_content', 'post')),

					'U_FORUM' =>		Fsb::$cfg->get('fsb_path'),
					'U_UNSUBSCRIBE' =>	Fsb::$cfg->get('fsb_path') . '/index.' . PHPEXT . '?p=portail',
				));
				$mail->Send();
				$mail->SmtpClose();
			}
			$numpaquet++;
			sleep(30);                         
		}		
		
		Http::redirect(ROOT . 'index.' . PHPEXT . '?p=portail');
	}