function listenradio(){
	window.open('player.php','player','height=240, width=504,toolbar=no,directories=no,status=no, menubar=no,scrollbars=no,resizable=no'); 
	return;		
}

function display_menu(sId){
	var oStyle = document.getElementById(sId).style;
		
	if (oStyle.display == "none"){
		oStyle.display = "block";
	}
	else {
		oStyle.display = "none";
	}
}



<!-- 
var popup="Copyright"; 
function noway(go) { 
if (document.all) { 
	if (event.button == 2) { alert(popup); return false; } 
} 

if (document.layers) { 
	if (go.which == 3) { alert(popup); return false; } 
} 
} 
if (document.layers) { document.captureEvents(Event.MOUSEDOWN); } 
document.onmousedown=noway; 
// -->