JavaScript form test

Pre-testing for a JavaScript form.

HTML

<!DOCTYPE html>
<html>
<head>
<script>
function greeting()
{
document.getElementById("p1").innerHTML="hello world";
}
</script>
</head>

<body>

What is your name?<br>
<form name="frm1" onsubmit="greeting()" method="post">
<input type="text" name="fname">
<input type="submit" value="Submit">
</form>

<p id="p1"></p>

</body>
</html>