function valide(block)
{
 if (document.getElementById('MAN_TOPON_2005_').checked == true)
  {
    document.getElementById('etranger').style.display = "";
  }
  else
  {
    document.getElementById('etranger').style.display = "none";
    document.getElementById('ETRANG_TELEC').checked = false;
  }

};

function choisir(Objet,block)
{

valide(block);
calcul (block);

};