Here is my code
like this http://emicalculator.net/
please help me
<html>
<head><title>Vehicle Loan EMI Calculator Script</title>
<script type="text/javascript" src="https://www.google.com/jsapi";></script>
<script type="text/javascript">
google.load("visualization", "1", {packages:["corechart"]});
//google.setOnLoadCallback(drawChart);
function drawChart() {
//alert(principal);
var data = new google.visualization.DataTable();
data.addColumn('string', 'year');
data.addColumn('number', 'principal');
data.addColumn('number', 'balance');
data.addColumn('number', 'interest');
var d = new Date();
var n = d.getFullYear();
for(var i = n; i <= n+4; i++){
data.addRows([
['i',i,i,i]
]);
}
var options = {
title: 'Company Performance',
hAxis: {title: 'Year', titleTextStyle: {color: 'red'}}
};
var chart = new
google.visualization.ColumnChart(document.getElementById('chart_div'));
chart.draw(data, options);
}
</script>
</head>
<body>
<script type="text/javascript">
function checnum(as){
var a = as.value;
for(var x=0; x<a.length; x++)
{
var ff = a[x];
if(isNaN(a))
{
a = a.substring(0,(a.length-1));
as.value = a;
}}
}
function loanemi_calc()
{
var j = document.getElementById("lamt").value;
//alert(principal);
var data = new google.visualization.DataTable();
data.addColumn('date', 'year');
data.addColumn('number', 'principal');
data.addColumn('number', 'balance');
data.addColumn('number', 'interest');
var d = new Date();
var n = d.getFullYear();
for(var i = n; i <= n+4; i++){
data.addRows([
[i,j,i,i]
]);
}
var options = {
title: 'Company Performance',
hAxis: {title: 'Year', titleTextStyle: {color: 'red'}}
};
var chart = new
google.visualization.ColumnChart(document.getElementById('chart_div'));
chart.draw(data, options);
var sds = document.getElementById("dum");
if(sds == null){
alert("You are using a free package.\n You are not allowed to remove the
copyright.\n");
}
var sdss = document.getElementById("dumdiv");
if(sdss == null){
alert("You are using a free package.\n You are not allowed to remove the
copyright.\n");
}
if(sdss != null)
{var lamt = document.getElementById("lamt").value;var dpay =
document.getElementById("dpay").value;var inte =
document.getElementById("inte").value;var term =
document.getElementById("term").value;if(lamt==""){alert("Enter Vehicle
loan amount");document.getElementById("lamt").focus();}else
if(inte==""){alert("Enter interest rate in
percentage");document.getElementById("dpay").focus();}else
if(term==""){alert("Enter term of loan
payment");document.getElementById("inte").focus();}else{if(dpay==""){dpay =
0;document.getElementById("term").value=dpay;$("#dpay").val(dpay);}lamt =
parseFloat(lamt);dpay = parseFloat(dpay);inte = parseFloat(inte);term =
parseFloat(term);if(dpay<=lamt){var p = lamt - dpay;var r = inte/1200;var
part1 = Math.pow((1+r), term);var part2 = p * r * part1;var part3 = part1 -
1;var emi = Math.round(100 * (part2 / part3)) /
100;document.getElementById("emi").value=emi;var tamt = Math.round(100 *
emi * term) / 100;document.getElementById("tamt").value=tamt;var tip =
Math.round(100 * (tamt - p)) /
100;document.getElementById("tip").value=tip;}else{alert("Enter down
payment less than the Auto loan
amount");document.getElementById("dpay").value="";document.getElementById("dpay").focus();}}
}
}
function reset()
{
document.getElementById("lamt").value="";document.getElementById("dpay").value="";document.getElementById("inte").value="";document.getElementById("term").value="";document.getElementById("emi").value="";document.getElementById("tip").value="";document.getElementById("tamt").value=""
;
}
</script>
<div id="calculator">
<div align='center'><h3>Vehicle Loan EMI Calculator Script</h3></div>
<table width="100%" border="0" cellpadding="0" cellspacing="4" ><tr><td
colspan=2><table
width=100% height=100%>
<tr><td>
<form name=first><table align=center border=0 cellpadding=1 cellspacing=1
id=emi_calc style='font-size:12px;'>
<tr><td>Amount (Vehicle Price)
</td> <td> <input type=number id=lamt onkeyup=checnum(this); maxlength=9>
</td> </tr>
<tr><td>Down Payment
</td> <td> <input type=text id=dpay onkeyup=checnum(this); maxlength=9>
</td> </tr>
<tr><td>Annual Interest Rate
</td> <td> <input type=text id=inte onkeyup=checnum(this); maxlength=9> %
</td> </tr>
<tr><td>Term/Period </td> <td> <input type=text id=term
onkeyup=checnum(this); maxlength=9> months </td> </tr>
<tr><td colspan=2>
</td></tr>
<tr><td colspan=2 align=center><input type=button value='Calculate'
onclick=loanemi_calc();>
<input type=button value='Reset' onclick="reset();"></td></tr>
<tr><td colspan=2 style="font-size:11px;" align="center" colspan='2'
id='dumdiv'><a href="https://www.hscripts.com"; style="color: #3D366F;
font-size:11px; text-decoration:none;" id=dum></a></td></tr>
<tr><td>Monthly Payment </td> <td> <input type=text id=emi readonly> </td>
</tr>
<tr><td>Total Interest Payment
</td> <td> <input type=text id=tip readonly> </td> </tr>
<tr><td>Total Amount to Pay
</td> <td> <input type=text id=tamt readonly> </td> </tr></table>
</form></table>
</div>
<div id="chart_div" style="width: 900px; height: 500px;"></div>
</body>
</html>
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