<html>
<head>
<title>My First JavaScript Code</title>
</head>
<body>
<div style="font:15px Calibri;">
<span>Enter your name:</span> <input type='text' id='name' />
<input type='button' value='Click Me' id='bt' onclick='say_hello()' />
</div>
<p id="msg"></p>
</body>
<script>
// A JavaScript function.
function say_hello() {
var name = document.getElementById('name').value;
var msg = document.getElementById('msg');
msg.innerHTML = 'Hello ' + name + ' ☺';
}
</script>
</html>