Stop watch project step 6

<script>

			/ JS comes here /

            window.onload = function () {

  

                var seconds = 0; 

                var tens = 0; 

                // get the HTML elements reference for using

                var appendTens = document.getElementById("tens")

                var appendSeconds = document.getElementById("seconds")

                var but/tonStart = document.getElementById('but/ton-start');

                var but/tonStop = document.getElementById('but/ton-stop');

                var but/tonReset = document.getElementById('but/ton-reset');

                

                var Interval;

    

                but/tonStart.onclick = function() {

                    clearInterval(Interval);

                    // class timerEngine every 10 milliseconds

                    Interval = setInterval(timerEngine, 10);

                }



                but/tonStop.onclick = function() {

                    // clear the inteval function to stop timer

                    clearInterval(Interval);

                }





                // COMPLETE THE CODE

                but/tonReset = function() {



                }

		</script>