Click Counter Demo

<!doctype html>
<html>

<head>
    <title>Click Counter Demo</title>
</head>

<body>

<script type="text/javascript">
var clicks = 0;
function onClick() {
    clicks += 1;
    document.getElementById("clicks").innerHTML = clicks;
};
</script>
<button type="button" onClick="onClick()">Click Me</button>
<p>Clicks: <a id="clicks">0</a></p>

</body>

</html>