function validaM11(rut,dv)
{
  var suma=0;
  var mul=2;
  var i=0;
  for (i=rut.length-1;i>=0;i--)
  {
    suma=suma+rut.charAt(i) * mul;
    mul= mul==7 ? 2 : mul+1;
  }
  var dvr = ''+(11 - suma % 11);
  if (dvr=='10') 
    dvr = 'K';
  else 
    if (dvr=='11') 
        dvr = '0';
        if (dvr!=dv) 
            return false;
    else 
        return true;
}

function digitoM11(rut)
{
  var suma=0;
  var mul=2;
  var i=0;

  for (i=rut.length-1;i>=0;i--)
  {
    suma=suma+rut.charAt(i) * mul;
    mul= mul==7 ? 2 : mul+1;
  }

  var dvr = ''+(11 - suma % 11);

  if (dvr=='10') 
    dvr = 'K';
  else 
    if (dvr=='11') 
        dvr = '0';
	return dvr
}

//-->