function no_music(){
	music = document.getElementById('music');
	document.body.removeChild(music);
	document.getElementById('on').style.display="none";
	document.getElementById('off').style.display="block";
	/*----sauvegarde---------*/
	var expireDate = new Date();
	expireDate.setMonth(expireDate.getMonth()+6);
	var userName="no";
	document.cookie="music_etnief="+userName+";expires="+expireDate.toGMTString();
	
}
function re_music(){
	document.body.appendChild(music);
	document.getElementById('on').style.display="block";
	document.getElementById('off').style.display="none";
	/*----sauvegarde---------*/
	var expireDate = new Date();
	expireDate.setMonth(expireDate.getMonth()+6);
	var userName="ok";
	document.cookie="music_etnief="+userName+";expires="+expireDate.toGMTString();
}