Kirby 2 Language Switch

lang-switch.php

<nav class="languages" role="navigation'"> 
	<?php foreach($site->languages() as $language): ?>
		 <?php $inventory = $page->inventory();
       			if (array_key_exists($language->code(),$inventory['content'])) :?>
		<?php if(($site->language() !== $language)): ?>
			<span>
				<a href="<?php echo $page->url($language->code()) ?>"><?php echo $language->code(); ?></a> 
			</span> 
		<?php endif ?>
	<?php endif ?>
	<?php endforeach?>
</nav>