function togglePanel( e, id ){
		Effect.toggle( 'answer' + id , 'blind', {duration: 0.5});
		if ( document.getElementById('answer' + id ).className == "" ){
			document.getElementById('answer' + id ).className = "active";
			e.innerHTML = "Antwort verbergen";
		}
		else{
			document.getElementById('answer' + id ).className = "";
			e.innerHTML = "Antwort anzeigen";
		}
}