function mapa_portoxxi(){
  window.open("http://www.portoxxi.com/mapa/mapa.htm","_blank","top=0,left=0,position=5,toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,width=745,height=540");
}

function mapag(){
  window.open("http://www.portoxxi.com/mapag/mapa.php","_blank","top=0,left=0,position=5,toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,width=961,height=605");
}