form location

<!DOCTYPE html>
<html>
<head>
	<title>Belajar Javascript - Angga Risky</title>
	<meta charset="utf-8">
</head>
<body>

	<form name="anggaForm">

		<label for="username">
			Username :
		</label>
		<input type="text" id="username" required placeholder="Nama User" />

		<label for="password">
			Password :
		</label>
		<input type="password" id="password" required placeholder="Kata Sandi" />

		<button type="submit" onclick="masukAkun();">
			Masuk
		</button>

	</form>

	<script>

		function masukAkun() {
			var userName = document.getElementById("username").value;
			var kataSandi = document.getElementById("password").value;
			if((userName === "angga") && (kataSandi =="123aaa")) {
				// alert("Selamat!, Kamu berhasil login!");
				window.location = "http://www.google.com";
			}
			else {
				alert("Waduh, Password kamu salah!");
			}
		}

	</script>

</body>
</html>