function derecha(e) {
if (navigator.appName == 'Netscape' && (e.which == 3 || e.which == 2)){
alert('Botón derecho inhabilitado')
return false;
}
else if (navigator.appName == 'Microsoft Internet Explorer' && (event.button == 2)){
alert('Astillero Victoria')
}
}
document.onmousedown=derecha
function enlaces(dir) {
window.location.replace(dir)
  }

<!--
function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);
//-->
self.moveTo(0,0);self.resizeTo(screen.availWidth,screen.availHeight);

function PantallaCompleta(URL) {
window.open(URL, '', 'fullscreen=yes, scrollbars=yes, toolbar=no, location=no, directories=no, status=no, menubar=no , resizable=no');
}