manipulasi data pegawai

<html>
<head>
<title>Manipulasi Data Pegawai</title>
<script language = "javascript" type="text/javascript">
<!--

var DBPegawai = new Array();
function Pegawai(Fields_NIP,Fields_Nama,Fields_Gaji_Per_Jam,Fields_Jam_Kerja,Fields_Gaji_Total)
{

this.NIP = Fields_NIP;
this.Nama = Fields_Nama;
this.Gaji_Jam = Fields_Gaji_Per_Jam;
this.Jam_Kerja = Fields_Jam_Kerja;
this.Gaji_Total = Fields_Gaji_Total;
}

function inputpegawai()

{

var Nama,Gaji_Per_Jam,Jam_Kerja,Gaji;
while (NIP = window.prompt("Ketikan NIP (Nomor Induk Pegawai)\n Click 'cancel' untuk Berhenti !!."))
{
Nama = window.prompt("Nama Pegawai");
Gaji_Per_Jam = parseInt(window.prompt("Gaji Per Jam"));
Jam_Kerja = parseInt(window.prompt("Jumlah Jam Kerja"));
Gaji = Gaji_Per_Jam * Jam_Kerja;
DBPegawai[DBPegawai.length] = new Pegawai(NIP,Nama,Gaji_Per_Jam,Jam_Kerja,Gaji);
}
ShowPegawai();
}

function ShowPegawai()
{
document.write("<table border='1'>"+
"<tr>"+
"<th>NIP</th><th>Nama</th><th>Gaji Per jam</th><th>Jam Kerja</th>"+
"<th>Gaji Total</th>"+
"</tr>");

for (i=0; i<DBPegawai.length; i++)
{
document.write("<tr>" +
"<td>" +DBPegawai[i].NIP+ "</td>" +
"<td>" +DBPegawai[i].Nama+ "</td>" +
"<td align='right'>" +DBPegawai[i].Gaji_Jam+ "</td>" +
"<td align='right'>" +DBPegawai[i].Jam_Kerja+ "</td>" +
"<td align='right'>" +DBPegawai[i].Gaji_Total+ "</td>" +
"</tr>");
}
document.write("</table>");
}
//-->
</script>
</head>
<body onload = "inputpegawai();">
</body>
</html>