function AbrirVentanaINDEX(codigo) {
  switch (codigo){
     case 0:
       window.open("creditos.htm","MAYOR",'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,width=290,height=280');
       break;
     case 1:
      window.open("seguridad.htm","MAYOR",'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,width=290,height=380');
      break;
     case 2:
      window.open("condiciones.htm","MAYOR",'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=0,width=340,height=380');
      break;
  }
}

function AgregarFavoritos()
{
  var url='http://www.redesinformaticas.net';  
  var texto='Redes Informaticas';  
  if (document.all) { window.external.AddFavorite(url,texto); }
}

function Favorito()
{  
  if (navigator.appVersion>=4||navigator.appName=='Microsoft Internet Explorer') 
    {this.style.behavior='url(#default#homepage)';
     this.setHomePage('http://www.redesinformaticas.net');
    }
}