// JavaScript Document


var finalBenefit = 0;

function formatCurrency(num) {
	num = num.toString().replace(/\$|\,/g,'');
	if(isNaN(num))
		num = "0";
	sign = (num == (num = Math.abs(num)));
	num = Math.floor(num*100+0.50000000001);
	cents = num%100;
	num = Math.floor(num/100).toString();
	if(cents<10)
		cents = "0" + cents;
	for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)
		num = num.substring(0,num.length-(4*i+3))+','+
		num.substring(num.length-(4*i+3));
	return (((sign)?'':'-') + '$' + num + '.' + cents);
}

function calcBenefit() {
	
	var monthsService = Number(document.getElementById('active-months').value);
	
	var percentBenefit = 0;
	switch (monthsService)
	{
		case 6:
			percentBenefit = .5;
			break;
		case 12:
			percentBenefit = .6;
			break;
		case 18:
			percentBenefit = .7;
			break;
		case 24:
			percentBenefit = .8;
			break;
		case 30:
			percentBenefit = .9;
			break;
		case 36:
			percentBenefit = .9;
			break;
		default:
			percentBenefit = 0;
			break;
	}

	var maxPerCredit = 477.0;
	var maxPerTerm = 12280.00;
	
	var credits = 17; //get later - assumed for now
	var tuition = 12058; //get later = assumed for now
	var fees = 250;
	
	var maxTuition = maxPerCredit * credits;
	var actualPerCredit = tuition / credits;
	
	//calc per credit hour
	var perCreditBenefit = 0;
	if (actualPerCredit > maxPerCredit) {
		perCreditBenefit = maxPerCredit;
	} else {
		perCreditBenefit = actualPerCredit;
	}
	
	var coveredTuition = perCreditBenefit * credits;
	var tuitionGap = (maxPerTerm - coveredTuition);
		
	//calc tuition portion
	var tuitionBenefit = 0;
	if (coveredTuition > maxPerTerm) {
		tuitionBenefit = maxPerTerm;
	} else {
		tuitionBenefit = coveredTuition;
	}
	
	//calc fees portion
	var feesBenefit = 0;
	var maxFeesBenefit = (maxPerTerm - tuitionBenefit);
	if (fees > maxFeesBenefit) {
		feesBenefit = maxFeesBenefit;
	} else {
		feesBenefit = fees;
	}
		
	var totalBenefit = ((tuitionBenefit + feesBenefit) * percentBenefit) * 2;
	var fourYearBenefit = totalBenefit * 4;
	
	document.getElementById('tuitionText').value = formatCurrency(tuitionBenefit * percentBenefit * 2);
	document.getElementById('feesText').value = formatCurrency(feesBenefit * percentBenefit * 2);
	document.getElementById('fourYears').value = formatCurrency(fourYearBenefit);
	document.getElementById('totalBenefit').value = formatCurrency(totalBenefit);
	
	document.getElementById('totalHeadline').innerHTML = formatCurrency(fourYearBenefit);
	document.getElementById('yearHeadline').innerHTML = formatCurrency(totalBenefit);
	document.getElementById('totalCopy').innerHTML = formatCurrency(fourYearBenefit);
	
	return true;

}