<!DOCTYPE html>
<html lang="en-US">
<body>
<p>Just wheel it.</p>
<p>You wheeled for <span id="point">0</span> times.<p>
<script>
var count = 0;
function myFunction(){
count += 1;
document.getElementById("point").innerHTML = count;
}
document.onwheel = myFunction;
</script> </body>
</html>