function swapBtn(nom,num,lng,etat,format){
	document['btn'+nom+num].src = '/images/'+lng+'/btn'+nom+'_'+etat+'.'+format;
}
function verifierDispo(lng){
	vMois = document.getElementById('mois').value;
	vAnnee = document.getElementById('annee').value;
	if(lng=="fr"){
		window.location = '/calendrier.php?current_date='+vAnnee+'-'+vMois+'-01';
	}else if(lng=="en"){
		window.location = '/calendar.php?current_date='+vAnnee+'-'+vMois+'-01';
	}
}