var music_state = true;

function switch_music() {

	if (music_state == true) {

		music_state = false;

		document.getElementById("music-box").innerHTML="";
		document.getElementById("music-icon").src = "images/m-off.png";
	} else {
		music_state = true;

		document.getElementById("music-box").innerHTML='<object id="music-object" data="newbunker.mp3" loop="true"></object>';
		document.getElementById("music-icon").src = "images/m-on.png";
	}
}