Language selection

Hi
Im working on some language selection in a website, so far it is working wery well exept i cant get it to remember the chosen language when changing pages, im thinking it must be done by either using a session or a cookie but im stuck atm.

Here is my code.

PHP:

<?php 
//language
$languages = array(     
    'en' => 'english', 
    'dk' => 'danish', 
    ); 

if (isset($_GET['lang']) AND array_key_exists($_GET['lang'], $languages)) 
{ 
    include './lang/' . $languages[$_GET['lang']] . '.php'; 
} 
else 
{ 
    include './lang/english.php'; 
} 

?>


And to change the language im just using simple links

PHP:

<a class="link" href="<? echo $_SERVER[PHP_SELF];?>?lang=dk"><?php echo $lng['danish']; ?></a>

<a class="link" href="<? echo $_SERVER[PHP_SELF];?>?lang=en"><?php echo $lng['danish']; ?></a>


Any ideas ??

 

Create a session in PHP. This page has a simple example: http://de3.php.net/manual/en/function.session-start.php