logout error

[auriaks]

when i try to logout it works but i get this error too:
Warning: session_destroy() [function.session-destroy]: Trying to destroy uninitialized session in /home/domains/public_html/index.php on line 10

Script:

if($_GET['act'] == 'logout') {
    echo '<center><font color="Green">Sėkmingai atsijungėte.</font></center>';
    session_unset();
    session_destroy(); // remove the entire session 

on line 10 is session destroy... If you need more ingo, ask. Thanks

[techietim]

You need to call session_start(); before you try to do anything.

[auriaks]

Thanks