[PHP]Problem z session Opcje

[VirG]

Hi.

Mam problem z session, ponieważ na stronie ukazują się błędy:

Kod

Warning: session_register() [function.session-register]: Cannot send session cookie - headers already sent by (output started at /home/str/public_html/admin/index.php:1) in /home/str/public_html/admin/index.php on line 2

Warning: session_register() [function.session-register]: Cannot send session cache limiter - headers already sent (output started at /home/str/public_html/admin/index.php:1) in /home/str/public_html/admin/index.php on line 2

A to pierwsze 4 linijki strony:

[PHP] pobierz, plaintext 
<?php
 session_register("zalogowany");
 session_start();
 if(empty($_SESSION["zalogowany"]))$_SESSION["zalogowany"]=0;
[PHP] pobierz, plaintext