Event.observe(window, 'load', function() {
	
	$('featurebox-listen').update('<img src="/images/closemenu.png" alt="Afficher les lieux" />');
	Event.observe('featurebox-listen', 'click', function(){
		$('featurebox').toggle();
		if($('featurebox').visible()){
			$('featurebox-listen').update('<img src="/images/closemenu.png" alt="" />');
		} else {
			$('featurebox-listen').update('<img src="/images/openmenu.png" alt="" />');
		}
	});
	
});