function showJukebox(){
	var w = null;
	var l = 400;
	var h = 282;
	var x_pos=parseInt((screen.width-l)/2);
	var y_pos=parseInt((screen.height-h)/2);
	var feat = 'width='+l+',height='+h+',menubar=no,titlebar=no,left='+x_pos+',top='+y_pos+',resizable=no';
	w = window.open("squelettes/jukebox.html","jukebox",feat);
	w.focus();
}