var intRate1;
var mnthRepay1;
var monthsClearDebt1;
var yearsClearDebt1;
// round a number to X decimals
function round1(number, plcs)
{
plcs = (!plcs ? 2 : plcs);
return Math.round(number * Math.pow(10, plcs)) / Math.pow(10, plcs);
}
// get the values from the Clear your debt table into JS variables
function getValsMonths()
{
crdBalance = new Number(document.frmCard1.crdBalanceMonths.value);
intRate1 = new Number(document.frmCard1.intRateMonths.value);
monthsClearDebt1 = document.frmCard1.monthsSelect[document.frmCard1.monthsSelect.selectedIndex].value;
yearsClearDebt1 = document.frmCard1.yearsSelect[document.frmCard1.yearsSelect.selectedIndex].value;
}
// check if a given variable is a valid number. isNAN tests if a variable is Not A Number
function isValidNum1(num)
{
var isValidNum = false;
if ( !isNaN(num) && num != "" && num != undefined){
isValidNum = true;
}
return isValidNum;
}
// calc the monthly interest rate
function GetMnthintRate1()
{
return (parseFloat(intRate1)/100)/12;
}
function CalcResultsMonths()
{
// want card paid off in X months, work out required monthly payment and total cost
var mnintRate1 = null;
// calc the monthly interest rate
mnintRate1 = GetMnthintRate1();
var totalMonths = ((parseInt(yearsClearDebt1)*12) + parseInt(monthsClearDebt1));
var mnthlyIntCost = (crdBalance*mnintRate1);
var change = 1-Math.pow((1+mnintRate1),-totalMonths);
var reqPayment = (mnthlyIntCost / change).toFixed(2);
document.frmCard1.resultMonths.value = reqPayment;
// total cost -> document.frmCard1.resultBox2.value = (reqPayment*totalMonths).toFixed(2);
}
function ResetFieldsRepay()
{
document.frmCard1.resultRepay.value = '';
}
function ResetFieldsMonths()
{
document.frmCard1.resultMonths.value = '';
}
function UpdateMonths()
{
// get the forms variables
getValsMonths();
if (!isValidNum1(crdBalance))
{
alert('Por favor introduzca el saldo correctamente');
document.frmCard1.crdBalanceMonths.focus();
}
else if (!isValidNum1(intRate1))
{
alert('Por favor introduzca un tipo de interes valido');
document.frmCard1.intRate1Months.focus();
}
else if (monthsClearDebt1 == 0 && yearsClearDebt1 == 0)
{
alert('Por favor seleccione el plazo de tiempo');
document.frmCard1.yearsSelect.focus();
}
else
{
CalcResultsMonths(true);
}
}
// auto populate the 2nd card balance box
function PopCardBalMonths()
{
if (document.frmCard1.crdBalanceRepay.value == null || document.frmCard1.crdBalanceRepay.value == ''){
document.frmCard1.crdBalanceRepay.value = document.frmCard1.crdBalanceMonths.value;
}
}
function realityCheck2()
{
var imagePath= 'http://www.tarjeta-credito-online.es/creditcal/images';
document.write('');
document.write('');
}
realityCheck2();