con i cicli non mi trovo, quindi ho provato cosi', ma nada

codice:
	function calculateTotal() {
	one = parseInt(document.questions.one.value);
	two = parseInt(document.questions.two.value);
	three = parseInt(document.questions.three.value);
	four = parseInt(document.questions.four.value);
	five = parseInt(document.questions.five.value);
	six = parseInt(document.questions.six.value);
	seven = parseInt(document.questions.seven.value);
	eight = parseInt(document.questions.eight.value);
	nine = parseInt(document.questions.nine.value);
	ten = parseInt(document.questions.ten.value);
	eleven = parseInt(document.questions.eleven.value);
	twelve = parseInt(document.questions.twelve.value);
	thirteen = parseInt(document.questions.thirteen.value);
	fourteen = parseInt(document.questions.fourteen.value);
	fifthteen = parseInt(document.questions.fifthteen.value);
	sixteen = parseInt(document.questions.sixteen.value);
	seventeen = parseInt(document.questions.seventeen.value);
	eighteen = parseInt(document.questions.eighteen.value);
	nineteen = parseInt(document.questions.nineteen.value);
	twenty = parseInt(document.questions.twenty.value);
	
	result = one + two + three + four + five + six
	+ seven + eight + nine + ten + eleven + twelve
	+ thirteen + fourteen + fifthteen + sixteen + seventeen
	+ eighteen + nineteen + twenty;
	
	alert("Tot: " + result);
	}