function

<html>
<head>
<title>Function</title>
 <script language="JavaScript">
 function pesan()
 {
  var nama = prompt('Ketikkan Nama Anda:','')
  var email = prompt('Email Anda : ','[email protected]')
  document.write("Nama Anda :" + nama + "<br>")
  document.write("Email Anda :" + email)
 }
 </script>
</head>
<body>
<input type="button" value="Coba Isi Data" onclick="pesan()">
</body>
</html>