<!DOCTYPE html>
<html>
<head>
<title>belajar HTML</title>
</head>
<body>
<script language="JavaScript">
<!--
function hitungtotal()
{
var nama = (document.ffrom.inama.value);
var harga = (document.ffrom.iharga.value);
var jumlah = parseFloat (document.ffrom.ijumlah.value);
var total =0.0;
var pajak =0.10%;
var bayar =0.0;
if (nama=="use")
{
ht =50000;
}
else if(nama=="memory")
{
ht =120000;
}
else if(nama=="speaker")
{
ht =40000;
}
sub = jumlah*ht;
if(document.ffrom.iharga.checked==true)
{
total=0.0;
}
else
{
pajak=10%;
}
else
{
bayar=0.0;
}
bayar = total-pajak;
document.ffrom.ototal.value=eval(total);
document.ffrom.opajak.value=eval(pajak);
document.ffrom.obayar.value=eval(bayar);
//gunakan untuk mengecek !!! alert (total);
}
//--></script>
<form name ="ffrom">
<H2 ALIGN="center">Penjualan Barang Elektronik</H2></td><hr>
<PRE>
nama barang :<input type="text" size="20" name="inama">
harga :<input type="text" size="10" name="iharga">
jumlah :<input type="text" size="10" name="ijumlah">
<br>
aksesoris : <input type="checkbox" name="imember">usb</td>
: <input type="checkbox" name="imember">memory</td>
: <input type="checkbox" name="imember">speaker</td>
</PRE>
<pre>
total :<input type="text" size="10" name="ototal">
pajak 10% :<input type="text" size="10" name="opajak">
bayar :<input type="text" size="10" name="obayar">
</pre>
<hr>
<center>
<input type="button" value="proses" onclick="hitungtotal()">
<input type="reset" value="reset">
</center>
</form>
</body>
</html>
Contoh Gambar
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