Ending an onmousedown event (onmouseup?)

I've created a button using an onmousedown event which loops an audio track when clicked. I'm trying to end the audio loop when the same button is clicked. I have tried an onmouseup event but no luck, any ideas? (I'm new to JavaScript)

<script> var one = new Audio(); one.src = "files/audio/one.wav"; one.loop = true; </script>

<img class="item" src="files/button.png" onmousedown="one.play()" onmouseup="one.stop()"/>

Try using a var to keep track of your clicks and only listen for the click event :

JS

var one = new Audio(); 
one.src = "files/audio/one.wav"; 
one.loop = true;
var isPlaying = false;

function manage(){
  if(isPlaying){
    one.pause();
    one.currentTime = 0;
    isPlaying = false;
  }
  else{
    one.play();
    isPlaying = true;
  }
}

HTML

<img class="item" src="files/button.png" onclick="manage()"/>