logout problem

[ceanth]

I have created a simple logout script which has this at the top of the page:

<?php
session_start();
session_destroy();
?>

but when i link a page to this it doesnt remove the sessions, but if i hit the refresh button on the broswer it removes it, why is this happening?

[Chizzad]

this is how I do it... and it works every time for me...

at top of page:

session_start();

if(isset($_GET['logout']))
{    session_destroy();
      echo "logged out...";
}

link on the page:

<a href="<?php echo $PHP_SELF."?logout" ?>Logout<?>