function FVersion()
{
  var posfin=-1;
  var posini=-1;
  var long=window.location.href.length;
  var cadena="";

  posfin=window.location.href.lastIndexOf("/");
  if (posfin!=-1)
    posfin=posfin-1
  posfin=window.location.href.lastIndexOf("/",posfin);
  if (posfin!=-1)
    posfin=posfin-1
  
  cadena=window.location.href.substr(0,posfin+1) + "/english" + window.location.href.substr(posfin+1,long-posfin);
  window.location.href=cadena;
}


function FImprimir()
{
  var posini=-1;
  var long=window.location.href.length;
  var cadena="";

  posini=window.location.href.lastIndexOf("."); 
  if (posini==-1)
    return;

  cadena=window.location.href.substr(0,posini) + "_pp" + window.location.href.substr(posini,long-posini+1);
  window.open(cadena, 'oficinamadrid','toolbar=0,location=0,scrollbars=yes,width=616,height=650')
}

function FArticulos()
{
  var posini=-1;
  var long=window.location.href.length;
  var cadena="";

  posini=window.location.href.lastIndexOf("."); 
  if (posini==-1)
    return;

  cadena=window.location.href.substr(0,posini) + "_art" + window.location.href.substr(posini,long-posini+1);
  window.location.href=cadena;
}

function FVolver()
{
  var posini=-1;
  var posfin=-1;
  var long=window.location.href.length;
  var cadena="";

  posini=window.location.href.lastIndexOf("_art"); 
  posfin=window.location.href.lastIndexOf("."); 
  if ((posini==-1)||(posfin==-1))
    return;

  cadena=window.location.href.substr(0,posini) + window.location.href.substr(posfin,long-posfin+1);
  window.location.href=cadena;
}

function FImprimirArt()
{
  var posini=-1;
  var posfin=-1;
  var long=window.location.href.length;
  var cadena="";

  posini=window.location.href.lastIndexOf("art"); 
  posfin=window.location.href.lastIndexOf("."); 
  if ((posini==-1)||(posfin==-1))
    return;

  cadena=window.location.href.substr(0,posini) + "pp" + window.location.href.substr(posfin,long-posfin+1);
  window.open(cadena,'print','toolbar=0,location=0,scrollbars=yes,width=616,height=650')
}