function changeArtist() {
	if(document.getElementById('artistlist').value == "") {
		document.location="index.php?page=artistes";
	}
	else {
		document.location="index.php?page=artistes&artiste=" + document.getElementById('artistlist').value;
	}
}

function changeAlbum(type) {
	if(document.getElementById('albumlist' + type).value == "") {
		document.location="index.php?page=albums&categorie=" + type;
	}
	else {
		document.location="index.php?page=albums&categorie=" + type + "&artiste=" + document.getElementById('albumlist' + type).value;
	}
}