Tryit Editor v2.9

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

<audio id="myAudio1" controls>
  <source src="horse.ogg" type="audio/ogg">
  <source src="horse.mp3" type="audio/mpeg">
  Your browser does not support the audio element.
</audio>

<audio id="myAudio2" controls>
  <source src="horse.ogg" type="audio/ogg">
  <source src="horse.mp3" type="audio/mpeg">
  Your browser does not support the audio element.
</audio><br>

<button onclick="setMedGroup()" type="button">Set media group for audios</button>
<button onclick="getMedGroup()" type="button">Get media group for audios</button>

<script>
var x = document.getElementById("myAudio1");
var y = document.getElementById("myAudio2");

function setMedGroup() { 
    x.mediaGroup = "test";
    y.mediaGroup = "test";
} 

function getMedGroup() { 
    alert("Audio 1 media group: " + x.mediaGroup +
    ". Audio 2 media group: " + y.mediaGroup);
} 
</script> 

</body> 
</html>