> is variable that hold the value of PPSR fee.
* - EstablishmentFee -->> is variable that hold the value of Establishment Fee.
* - AdminFee -->> is variable that hold the value of Monthly Admin Fee.
* - List -->> is array that hold the text in the list box for the repayment frequency. The first value is the data of the variable " List[0] " which is Select.
* - txt and txt2 -->> are two variable hold the text that users will see in the calculation result. (see line 238 and 239)
* - Rate1,...etc -->> each hold the value of the Interest Rate.
* - Rate1 -->> for Amount Financed less than 10000.
* - Rate2 -->> for Amount Financed bigger than 10000 and less than 15000.
* - Rate3 -->> for Amount Financed bigger than 15000.
* - Frequency -->> is variable for the cost of the Repayment Frequency (Weekly - Fortnightly - Monthly). No need to add value to it.
* - Frequency1 -->> if the Frequency selected is "Weekly" this is the cost will be used.
* - Frequency2 -->> if the Frequency selected is "Fortnightly" this is the cost will be used.
* - Frequency3 -->> if the Frequency selected is "Monthly" this is the cost will be used.
*-----------------------------------------------------------------------------------------*/
var List = new Array();
List[0] = 'Select';
List[1] = 'Weekly';
List[2] = 'Fortnightly';
List[3] = 'Monthly';
var Rate;
var Frequency;
/*-----------------------------------------------------------------------------------------*/
/*total gross cost variable*/
var TotalGross;
/*purchase variable*/
var Price;
/*error var*/
var error;
/*var for the select box text and tags*/
var listTxt_1;
var listTxt_2;
var listTxt_3;
/*the above less the following*/
var Deposit;
var Allowance;
var totalDepAllw;
/*the different between the above*/
var AmountFinanced;
/*number of months*/
var LoanTerm;
/*monthly payemnt var*/
var MonthlyPayment;
/*result payement*/
var resultRepayment;
/*validation function*/
function validate_form(Price,Deposit,Frequency,LoanTerm)
{
if ( Price == "" )
{
error = ( "Please fill in the 'Price' box." );
return false;
}
if ( Deposit == "" )
{
error = ( "Please fill in the 'Deposit' box." );
return false;
}
if ( LoanTerm == "" )
{
error = ( "Please fill in the 'Loan Term' box." );
return false;
}
if ( Frequency == 0 )
{
error = ( "Please select the 'Monthly Frequency'." );
return false;
}
if(isNaN(Price) || Price < 0 )
{
error = ("Only positive numbers are allowed for 'Price' box.");
return false;
}
if(isNaN(Deposit) || Deposit < 0 )
{
error = ("Only positive numbers are allowed for 'Deposit' box.");
return false;
}
if(isNaN(LoanTerm) || LoanTerm < 0 )
{
error = ("Only positive numbers are allowed for 'Loan Term' box.");
return false;
}
return true;
}
/*do the calculation*/
function Calculator()
{
/*grab the data from the form*/
Price = document.calForm.Price.value;
Price = removeComma(Price);
Deposit = document.calForm.Deposit.value;
Deposit = removeComma(Deposit);
//Allowance = document.calForm.Allowance.value;
//Allowance = removeComma(Allowance);
Frequency = document.calForm.Frequency.value;
Frequency = removeComma(Frequency);
LoanTerm = document.calForm.LoanTerm.value;
LoanTerm = removeComma(LoanTerm);
/*if there is error show it else run the calculation*/
if(validate_form(Price,Deposit,Frequency,LoanTerm) == false)
{
alert(error);
}
else
{
/*total gross cost*/
TotalGross = parseFloat(Price) + parseFloat(PPSRFee) + parseFloat(EstablishmentFee);
//alert("TotalGross: " + TotalGross);
/*total deposit*/
totalDepAllw = parseFloat(Deposit);
//alert("total deposit: " +totalDepAllw);
/*the different between total deposit and total gross cost*/
AmountFinanced = parseFloat(TotalGross) - parseFloat(totalDepAllw);
//alert("AmountFinanced: " +AmountFinanced);
/*find the right rate depend on the Amount financed*/
if(TotalGross < 10000)
{
Rate = Rate1;
}
else if(TotalGross > 10000 && AmountFinanced < 15000)
{
Rate = Rate2;
}
else if(TotalGross > 15000)
{
Rate = Rate3;
}
/*calculate monthly payemnt*/
var i;
var m;
i = Rate / 12;
//alert("i: " + i);
m = Math.pow((1 + i),LoanTerm);
//alert("m: " + m);
MonthlyPayment = (AmountFinanced * i * m) / (m - 1);
//alert("MonthlyPayment: " + MonthlyPayment);
/*Calculating Indicative Repayment*/
/*find the Frequency value depend on the user selection*/
if(Frequency == 1)
{
Frequency = Frequency1;
FrqSelected = List[1];
}
else if(Frequency == 2)
{
Frequency = Frequency2;
FrqSelected = List[2];
}
else if(Frequency == 3)
{
Frequency = Frequency3;
FrqSelected = List[3];
}
p = MonthlyPayment + AdminFee;
resultRepayment = Math.round(p / Frequency * 100) / 100;
//alert("resultRepayment: " + resultRepayment);
/*if the calculation is positive value show it else show error message.*/
if(resultRepayment > 0)
{
// result text
var txt = "Your "+ FrqSelected +" Repayment is: "
var txt2 = " (This is an indicative estimate only and is subject to MCF normal lending criteria.)";
document.getElementById('result').style.visibility="visible";
/*if the result bigger than 1000 then use comma in the result*/
if(resultRepayment < 1000)
{
document.getElementById('result').innerHTML= txt + "$" + resultRepayment + txt2;
}
else
{
document.getElementById('result').innerHTML= txt + "$" + addCommas(resultRepayment)+ txt2;
}
}
else
{
alert("Please try again for some reason your calculation returned 0 value!");
}
} // end validation
} // end function
/*if the input number has a comma then this function will remove it for the calculate or the validation will return error
that this input is not number*/
function removeComma(S)
{
S = S.replace(/,/, '') // for input
return S;
}
/*function to add comman in the number for a better reading*/
function addCommas(numberStr)
{
numberStr += '';
x = numberStr.split('.');
x1 = x[0];
x2 = x.length > 1 ? '.' + x[1] : '';
var rgx = /(\d+)(\d{3})/;
while (rgx.test(x1)) {
x1 = x1.replace(rgx, '$1' + ',' + '$2');
}
return x1 + x2;
}
/*reset button to clear the form*/
function clearForm()
{
document.calForm.Price.value=""
document.calForm.Deposit.value=""
//document.calForm.Allowance.value=""
document.calForm.LoanTerm.value=""
document.calForm.Frequency.value=""
document.getElementById('result').style.visibility="hidden"
document.getElementById('result').innerHTML= "";
document.calForm.Price.focus()
}
/*this function will will hide the result text if the users changed one of the fields.*/
function checkIt(id)
{
if(document.calForm.id.value != "")
{
document.getElementById('result').style.visibility="hidden"
}
}
/*on load run this function to set the curse into Price box and generate the list box*/
function onLoadDo() {
/*set focus to Price box*/
document.calForm.Price.focus();
/*create the list box*/
var p = List.length;
var i= 0;
for(i=0 ; i < p ; i++)
{
listTxt_2 += "