function janela(endereco){
  if ( navigator.appName == "Netscape" ) {
    window.open(endereco, 'tvradio', 'maximized=yes,toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,copyhistory=no,width=650,height=500');
  } else {
    window.open(endereco, 'tvradio', 'maximized=yes,toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,copyhistory=no,width=650,height=500');
  }
}