HTML5 background music pause and play

HTML code:
<audio id= "Myaudio" loop= "loop" preload= "Auto" autoplay= "AutoPlay" >
<source src= "music/pure music%20-%20 in that faraway place%20-%20 Pure Music edition. mp3" type= "Audio/ogg"/>
<source src= "music/pure music%20-%20 in that faraway place%20-%20 Pure Music edition. mp3" type= "Audio/mp3"/>
</audio>



JS Code:
Background music stop and play
function Swap_music () {
var oaudio = document.getElementById (' Myaudio ');
if (oaudio.paused) {
Oaudio.play ();
}
else {
Oaudio.pause ();
}
}

HTML5 background music pause and play