// JavaScript Document
function CheckLoan(loanform) {
    var Amount = parseInt(loanform.Amount.value);
    var Interest = parseFloat(loanform.Interest.value);
    var Years = parseInt(loanform.Years.value);
    var Deposit = parseInt(loanform.Deposit.value);
    if (isNaN(Amount) || Amount <= 0) {
        alert('You need to enter a numeric loan amount');
        return false;
    } else if (isNaN(Interest) || Interest <= 0) {
        alert('You need to enter a numeric interest rate');
        return false;
    } else if (isNaN(Years) || Years <= 0) {
        alert('You need to enter a numeric loan term, in years');
        return false;
    } else if (Years > 40) {
        alert('You need to enter a realistic loan term');
        loanform.Years.value='';
        loanform.Years.focus();
        return false;
    }
    if (isNaN(Deposit) || Deposit < 0) {
        loanform.Deposit.value = 0;
    }
    return true;
}

function doClear(results) {
    results.Payment.value='';
    results.Interest.value='';
    results.LoanSD.value='';
    results.PropSD.value='';
    results.Total.value='';
}

function CalculateLoan(loanform, results) {    var Deposit = parseInt(loanform.Deposit.value);
    var Amount = parseInt(loanform.Amount.value);
    var Rate = parseFloat(loanform.Interest.value);
    var Term = parseInt(loanform.Years.value);
    var Frequency = loanform.Frequency.options[loanform.Frequency.selectedIndex].value;
    var State = loanform.State.options[loanform.State.selectedIndex].value;
    var Payment,NumPays,Total;

    if (Frequency == 'Monthly') {
        Rate = Rate / 1200.0;
        NumPays = Term * 12;
    } else if (Frequency == 'Weekly') {
        Rate = Rate / 5200.0;
        NumPays = Term * 52;
    }
    Payment = Amount * Rate / (1 - Math.pow((1 + Rate), -NumPays));
    Total = Payment * NumPays;

    results.Payment.value = format(RoundCents(Payment));
    document.SDForm.property.value = Deposit + Amount;
    document.SDForm.amount.value = Amount;
    computeForm(document.SDForm);
    results.LoanSD.value = eval('document.SDForm.'+State+'StampDuty.value');
    results.PropSD.value = eval('document.SDForm.'+State+'StampDuty2.value');
    results.Interest.value = format(RoundCents(Total - Amount));
    results.Total.value = format(RoundCents(Total + parseFloat(results.LoanSD.value) + parseFloat(results.PropSD.value)));
}

function RoundCents(n) {
    var val = new String(Math.round(n * 100));
    var Dollars = val.substring(0, val.length-2);
    var Cents = val.substring(val.length-2);
    return (Dollars + '.' + Cents);
}

function graphWindow(loanform) {
    window.open('http://www.realestate.com.au/cgi-bin/rsearch?a=slgi&Amount='+loanform.Amount.value+'&Interest='+loanform.Interest.value+'&Years='+loanform.Years.value+'&Frequency='+loanform.Frequency.options[loanform.Frequency.selectedIndex].value,'_blank','width=400,height=340');
}
function computeForm(form) {
    if (form.property.value == null || form.property.value.length == 0)
        form.property.value = 0;
    if (form.amount.value == null || form.amount.value.length == 0)
        form.amount.value = 0;
    form.nswStampDuty.value = 0;
    form.vicStampDuty.value = 0;
    form.qldStampDuty.value = 0;
    form.saStampDuty.value = 0;
    form.waStampDuty.value = 0;
    form.ntStampDuty.value = 0;
    form.actStampDuty.value = 0;
    form.tasStampDuty.value = 0;
    form.nswStampDuty2.value = 0;
    form.vicStampDuty2.value = 0;
    form.qldStampDuty2.value = 0;
    form.saStampDuty2.value = 0;
    form.waStampDuty2.value = 0;
    form.ntStampDuty2.value = 0;
    form.actStampDuty2.value = 0;
    form.tasStampDuty2.value = 0;
    form.nswTransfer.value = 0;
    form.vicTransfer.value = 0;
    form.qldTransfer.value = 0;
    form.saTransfer.value = 0;
    form.waTransfer.value = 0;
    form.ntTransfer.value = 0;
    form.actTransfer.value = 0;
    form.tasTransfer.value = 0;
    var tempAmount = form.amount.value;
    var tempProperty = form.property.value;
    if (form.amount.value >0 && form.amount.value <= 16000)
        form.nswStampDuty.value = 5;
    if (form.amount.value > 16000) {
        tempAmount = (tempAmount - 16000) / 1000;
        for (var i=0, k=1; tempAmount >i && tempAmount > k ; i++, k++);
        form.nswStampDuty.value = (k * 4) + 5;
    }             
    if (form.property.value >0 && form.property.value <= 14000) {
        tempProperty = (tempProperty / 100);
        for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
        form.nswStampDuty2.value = eval(form.nswStampDuty2.value) + (k * 1.25);
    }
    if (form.property.value > 14000 && form.property.value <= 30000) {
        tempProperty = (tempProperty - 14000) / 100;
        for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
        form.nswStampDuty2.value = eval(form.nswStampDuty2.value)+(k * 1.5) + 175;
    }
    if (form.property.value > 30000 && form.property.value <= 80000) {
        tempProperty = (tempProperty - 30000) / 100;
        for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
        form.nswStampDuty2.value = eval(form.nswStampDuty2.value)+(k * 1.75) + 415;
    }
    if (form.property.value > 80000 && form.property.value <= 300000) { 
        tempProperty = (tempProperty - 80000) / 100;
        for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
        form.nswStampDuty2.value = eval(form.nswStampDuty2.value)+(k * 3.5) + 1290;
    }
    if (form.property.value > 300000 && form.property.value <= 1000000) {
        tempProperty = (tempProperty - 300000) / 100;
        for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
        form.nswStampDuty2.value = eval(form.nswStampDuty2.value)+(k * 4.5) + 8990;
    }            
    if (form.property.value > 1000000) {
        tempProperty = (tempProperty - 1000000) / 100;
        for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
        form.nswStampDuty2.value = eval(form.nswStampDuty2.value)+(k*5.5) + 40490;
    }             
    form.nswTransfer.value = 56;
tempAmount = form.amount.value;
tempProperty = form.property.value;
if (form.amount.value >0 && form.amount.value <= 10000)
form.vicStampDuty.value = 4;    
if (form.amount.value > 10000) 
{
tempAmount = (tempAmount - 10000) / 200;
for (var i=0, k=1; tempAmount >i && tempAmount > k ; i++, k++);
form.vicStampDuty.value = 4 + (k * 0.8);
}
if (form.property.value >0 && form.property.value <= 20000) 
{
form.vicStampDuty2.value = eval(tempProperty) * 0.014;
}
if (form.property.value > 20000 && form.property.value <=115000) 
{
tempProperty = (tempProperty - 20000);
form.vicStampDuty2.value = eval(tempProperty) * 0.024 + 280;
}
if (form.property.value > 115000 && form.property.value <=870000) 
{
tempProperty = (tempProperty - 115000);
form.vicStampDuty2.value = eval(tempProperty) * 0.06 + 2560;
}
if (form.property.value > 870000) 
{
form.vicStampDuty2.value = eval(tempProperty) * 0.055;
}
tempProperty = form.property.value;
if (form.property.value >0 && form.property.value <= 500000)
form.vicTransfer.value = (tempProperty / 1000) * 2.46 + 90;
if (form.property.value > 500000)
form.vicTransfer.value = 1320;
tempAmount = form.amount.value;
tempProperty = form.property.value;
tempAmount *= 0.004;
form.qldStampDuty.value = tempAmount; 
if (form.property.value >0 && form.property.value <= 250000) 
{ 
tempProperty = (tempProperty / 100);
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.qldStampDuty2.value = eval(form.qldStampDuty2.value) + (k * 1.0);
}
if (form.property.value > 250000 && form.property.value < 500000) 
{
tempProperty = (tempProperty - 250000) / 100;
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.qldStampDuty2.value = eval(form.qldStampDuty2.value) + (k * 3.5) + 2500;
}
if (form.property.value >= 500000) 
{
tempProperty = (tempProperty - 500000) / 100;
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.qldStampDuty2.value = eval(form.qldStampDuty2.value) + (k * 3.75) + 11250;
}
tempProperty = form.property.value;
if (form.property.value <= 180000)
form.qldTransfer.value = 87;
if (form.property.value > 180000) 
{
tempProperty = (tempProperty - 180000) / 10000;
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.qldTransfer.value = eval(form.qldTransfer.value) + (k * 20) + 87;
}
tempAmount = form.amount.value;
tempProperty = form.property.value;
if (form.amount.value <= 400)
form.saStampDuty.value = 0;
if (form.amount.value > 400 && form.amount.value <= 4000)
form.saStampDuty.value = 10;
if (form.amount.value > 4000 && form.amount.value <= 10000) 
{
tempAmount = (tempAmount - 4000) / 100;
for (var i=0, k=1; tempAmount >i && tempAmount > k ; i++, k++);
form.saStampDuty.value = (k * 0.25) + 10;
}
if (form.amount.value > 10000) 
{
tempAmount = (tempAmount - 10000) / 100;
for (var i=0, k=1; tempAmount >i && tempAmount > k ; i++, k++);
form.saStampDuty.value = (k * 0.35) + 25.00000000000001;
}               
if (form.property.value >0 && form.property.value <= 12000) 
{
tempProperty = (tempProperty / 100);
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.saStampDuty2.value = eval(form.saStampDuty2.value) + (k * 1);
}
if (form.property.value > 12000 && form.property.value <=30000) 
{
tempProperty = (tempProperty - 12000) / 100;
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.saStampDuty2.value = eval(form.saStampDuty2.value) + (k * 2) + 120;
}
if (form.property.value > 30000 && form.property.value <=50000) 
{
tempProperty = (tempProperty - 30000) / 100;
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.saStampDuty2.value = eval(form.saStampDuty2.value) + (k * 3) + 480;
}
if (form.property.value > 50000 && form.property.value <=100000) 
{
tempProperty = (tempProperty - 50000) / 100;
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.saStampDuty2.value = eval(form.saStampDuty2.value) + (k * 3.5) + 1080;
}
if (form.property.value > 100000 && form.property.value <=1000000) 
{
tempProperty = (tempProperty - 100000) / 100;
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.saStampDuty2.value = eval(form.saStampDuty2.value) + (k * 4) + 2830;
}
if (form.property.value > 1000000) 
{
tempProperty = (tempProperty - 1000000) / 100;
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.saStampDuty2.value = eval(form.saStampDuty2.value) + (k * 4.5) + 38830;
}                
tempProperty = form.property.value;
if (form.property.value <= 5000)
form.saTransfer.value = 80;
if (form.property.value > 5000 && form.property.value <= 20000)
form.saTransfer.value = 90;
if (form.property.value > 20000 && form.property.value <= 40000)
form.saTransfer.value = 100;
if (form.property.value > 40000 && form.property.value <= 50000)
form.saTransfer.value = 142;
if (form.property.value > 50000) {
tempProperty = (tempProperty - 50000) / 10000;
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.saTransfer.value = (k * 45) + 142;
}                
tempAmount = form.amount.value;
tempProperty = form.property.value;
form.waStampDuty.value = tempAmount * 0.0025;
if (form.property.value >0 && form.property.value <= 80000) 
{     
tempProperty = (tempProperty / 100);
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.waStampDuty2.value = eval(form.waStampDuty2.value) + (k * 1.95);
}
if (form.property.value > 80000 && form.property.value <= 100000) 
{
tempProperty = (tempProperty - 80000) / 100;
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.waStampDuty2.value = eval(form.waStampDuty2.value) + (k * 2.85) + 1560;
}
if (form.property.value > 100000 && form.property.value <= 250000) 
{
tempProperty = (tempProperty - 100000) / 100;
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.waStampDuty2.value = eval(form.waStampDuty2.value) + (k * 3.7) + 2130;
}
if (form.property.value > 250000 && form.property.value <= 500000) 
{
tempProperty = (tempProperty - 250000) / 100;
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.waStampDuty2.value = eval(form.waStampDuty2.value) + (k * 4.55) + 7680;
}
if (form.property.value > 500000) 
{
tempProperty = (tempProperty - 500000) / 100;
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.waStampDuty2.value = eval(form.waStampDuty2.value) + (k * 4.85) + 19055;
}                
tempProperty = form.property.value;
if (form.property.value <= 85000)
form.waTransfer.value = 64;
if (form.property.value > 85000 && form.property.value <= 120000)
form.waTransfer.value = 74;
if (form.property.value > 120000 && form.property.value <= 200000)
form.waTransfer.value = 94;
if (form.property.value > 200000) 
{
tempProperty = (tempProperty - 200000) / 100000;
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.waTransfer.value = (k * 20) + 94;
}
tempAmount = form.amount.value;
tempProperty = form.property.value;
form.ntStampDuty.value = 0;         
tempProperty /= 1000;            
var tempP = tempProperty;
tempProperty *= tempProperty;
if (form.property.value <= 500000 ) 
{
form.ntStampDuty2.value = eval(tempProperty * 0.065) + eval(21 * tempP);
}
if (form.property.value > 500000) 
{
form.ntStampDuty2.value = (form.property.value * 0.054);
}
form.ntTransfer.value = 90;
tempAmount = form.amount.value;
tempProperty = form.property.value;
form.actStampDuty.value = 0;        
if (form.property.value >0 && form.property.value <= 14000) 
{     
tempProperty = (tempProperty / 100);
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.actStampDuty.value = eval(form.actStampDuty.value) + (k * 1.25);
}
if (form.property.value > 14000 && form.property.value <= 30000) 
{
tempProperty = (tempProperty -1400) / 100;
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.actStampDuty2.value = eval(form.actStampDuty2.value) + (k * 1.5) + 175;
}
if (form.property.value > 30000 && form.property.value <= 60000) 
{
tempProperty = (tempProperty - 30000) / 100;
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.actStampDuty2.value = eval(form.actStampDuty2.value) + (k * 2) + 415;
}
if (form.property.value > 60000 && form.property.value <= 100000) 
{
tempProperty = (tempProperty - 60000) / 100;
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.actStampDuty2.value = eval(form.actStampDuty2.value) + (k * 2.5) + 1015;
}
if (form.property.value > 100000 && form.property.value <= 300000) 
{
tempProperty = (tempProperty - 100000) / 100;
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.actStampDuty2.value = eval(form.actStampDuty2.value) + (k * 3.5) + 2015;
}
if (form.property.value > 300000 && form.property.value <= 1000000) 
{
tempProperty = (tempProperty - 300000) / 100;
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.actStampDuty2.value = eval(form.actStampDuty2.value) + (k * 4.5) + 9015;
}                
form.actTransfer.value = 140;
tempAmount = form.amount.value;
tempProperty = form.property.value;
if (form.amount.value >0 && form.amount.value <= 8000)
form.tasStampDuty.value = 20;
if (form.amount.value > 8000 && form.amount.value <= 10000) 
{
tempAmount = (tempAmount - 8000) / 100;
for (var i=0, k=1; tempAmount >i && tempAmount > k ; i++, k++);
form.tasStampDuty.value = (k * 0.25) + 20.00000000000001;
}
if (form.amount.value > 10000) 
{
tempAmount = (tempAmount - 10000) / 100;
for (var i=0, k=1; tempAmount >i && tempAmount > k ; i++, k++);
form.tasStampDuty.value = (k * 0.35) + 25.00000000000001;
}             
if (form.property.value >0 && form.property.value <= 1300)  
form.tasStampDuty2.value = eval(form.tasStampDuty2.value) + 20;
if (form.property.value > 1300 && form.property.value <= 10000) 
{
tempProperty = (tempProperty - 1300) / 100;
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.tasStampDuty2.value = eval(form.tasStampDuty2.value) + (k * 1.5) + 20;
}
if (form.property.value > 10000 && form.property.value <= 30000) 
{
tempProperty = (tempProperty - 10000) / 100;
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.tasStampDuty2.value = eval(form.tasStampDuty2.value) + (k * 2) + 150;
}
if (form.property.value > 30000 && form.property.value <= 75000) 
{
tempProperty = (tempProperty - 30000) / 100;
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.tasStampDuty2.value = eval(form.tasStampDuty2.value) + (k * 2.5) + 550;
}
if (form.property.value > 75000 && form.property.value <= 150000) 
{
tempProperty = (tempProperty - 75000) / 100;
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.tasStampDuty2.value = eval(form.tasStampDuty2.value) + (k * 3) + 1675;
}
if (form.property.value > 150000 && form.property.value <= 225000) 
{
tempProperty = (tempProperty - 150000) / 100;
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.tasStampDuty2.value = eval(form.tasStampDuty2.value) + (k * 3.5) + 3925;
}
if (form.property.value > 225000) 
{
tempProperty = (tempProperty - 225000) / 100;
for (var i=0, k=1; tempProperty >i && tempProperty > k ; i++, k++);
form.tasStampDuty2.value = eval(form.tasStampDuty2.value) + (k * 4) + 6550;
}                
form.tasTransfer.value = 130;
form.nswTotalDuty.value = eval(form.nswStampDuty.value) + eval(form.nswStampDuty2.value)
+ eval(form.nswTransfer.value);
form.vicTotalDuty.value = eval(form.vicStampDuty.value) + eval(form.vicStampDuty2.value)
+ eval(form.vicTransfer.value);
form.qldTotalDuty.value = eval(form.qldStampDuty.value) + eval(form.qldStampDuty2.value)
+ eval(form.qldTransfer.value);
form.saTotalDuty.value = eval(form.saStampDuty.value) + eval(form.saStampDuty2.value)
+ eval(form.saTransfer.value);
form.waTotalDuty.value = eval(form.waStampDuty.value) + eval(form.waStampDuty2.value)
+ eval(form.waTransfer.value);
form.ntTotalDuty.value = eval(form.ntStampDuty.value) + eval(form.ntStampDuty2.value)
+ eval(form.ntTransfer.value);
form.actTotalDuty.value = eval(form.actStampDuty.value) + eval(form.actStampDuty2.value)
+ eval(form.actTransfer.value);
form.tasTotalDuty.value = eval(form.tasStampDuty.value) + eval(form.tasStampDuty2.value)
+ eval(form.tasTransfer.value);
form.nswStampDuty.value = format(round(form.nswStampDuty.value));
form.vicStampDuty.value = format(round(form.vicStampDuty.value));
form.qldStampDuty.value = format(round(form.qldStampDuty.value));
form.saStampDuty.value = format(round(form.saStampDuty.value));
form.waStampDuty.value = format(round(form.waStampDuty.value));
form.ntStampDuty.value = format(round(form.ntStampDuty.value));
form.actStampDuty.value = format(round(form.actStampDuty.value));
form.tasStampDuty.value = format(round(form.tasStampDuty.value));
form.nswStampDuty2.value = format(round(form.nswStampDuty2.value));
form.vicStampDuty2.value = format(round(form.vicStampDuty2.value));
form.qldStampDuty2.value = format(round(form.qldStampDuty2.value));
form.saStampDuty2.value = format(round(form.saStampDuty2.value));
form.waStampDuty2.value = format(round(form.waStampDuty2.value));
form.ntStampDuty2.value = format(round(form.ntStampDuty2.value));
form.actStampDuty2.value = format(round(form.actStampDuty2.value));
form.tasStampDuty2.value = format(round(form.tasStampDuty2.value));
form.nswTotalDuty.value = format(round(form.nswTotalDuty.value));
form.vicTotalDuty.value = format(round(form.vicTotalDuty.value));
form.qldTotalDuty.value = format(round(form.qldTotalDuty.value));
form.saTotalDuty.value = format(round(form.saTotalDuty.value));
form.waTotalDuty.value = format(round(form.waTotalDuty.value));
form.ntTotalDuty.value = format(round(form.ntTotalDuty.value));
form.actTotalDuty.value = format(round(form.actTotalDuty.value));
form.tasTotalDuty.value = format(round(form.tasTotalDuty.value));
form.nswTransfer.value = format(round(form.nswTransfer.value));
form.vicTransfer.value = format(round(form.vicTransfer.value));
form.qldTransfer.value = format(round(form.qldTransfer.value));
form.saTransfer.value = format(round(form.saTransfer.value));
form.waTransfer.value = format(round(form.waTransfer.value));
form.ntTransfer.value = format(round(form.ntTransfer.value));
form.actTransfer.value = format(round(form.actTransfer.value));
form.tasTransfer.value = format(round(form.tasTransfer.value));
}
function format(number)
{
if (number.length > 9 && number.length <= 12) 
{
number = (number.substring(0,number.length-9) + 
"," + number.substring(number.length-9,number.length-6) +
"," + number.substring(number.length-6,number.length));
return number;
}
if (number.length > 6 && number.length <= 9) 
{
number = (number.substring(0,number.length-6) + 
"," + (number.substring(number.length-6,number.length)));
return number;
}
return number;
}
function round(number)   
{
var dollars = Math.floor(number);
for (var decimalAt = 0; decimalAt < number.length; decimalAt++) 
{
if (number.charAt(decimalAt)==".")
break;
}
var cents = "" + Math.round(number * 100);
cents = cents.substring(cents.length-2, cents.length);
dollars += ((number.charAt(decimalAt+2)=="9")&&(cents=="00"))? 1 : 0;
return (dollars + "." + cents)
}
function clearForm(form)
{
form.amount.value = "";
form.property.value = "";
}