এইচটিএমএল onmousedown

<!DOCTYPE html>
<html>
<body>

<button
  onmousedown="pressed(this)"
  onmouseup="released(this)">
  ক্লিক করুন
</button>

<script>
function pressed(button) {
  button.innerHTML = "চাপুন";
}

function released(button) {
  button.innerHTML = "ছাড়ুন";
}
</script>

</body>
</html>