Tryit Editor v2.9

Edit This Code:
<!DOCTYPE html>
<html>
<body>

<input type="reset" id="myReset"><br>

<button onclick="disable()">Disable Reset Button</button>
<button onclick="undisable()">Undisable Reset Button</button>

<script>
function disable() {
    document.getElementById("myReset").disabled = true;
}
function undisable() {
    document.getElementById("myReset").disabled = false;
}
</script>

</body>
</html>