function adresat1(){
  var d = $('zo_adresat');
  d.innerHTML = "<p><strong>Dział Marketingu i Sprzedaży Usług Przewozowych PKP LHS sp. z o.o.</strong></p>";
}
function adresat2(){
  var d = $('zo_adresat');
  d.innerHTML = "<p><strong>Dział Spedycji PKP LHS sp. z o.o.</strong></p>";
}

function disable1(){
  var form = $('fd1');
  var form = $('fd2');
  Form.Element.disable('fd1');
  Form.Element.disable('fd2');
}

function disable2(){
  var form = $('sd1');
  var form = $('sd2');
  var form = $('sd3');
  var form = $('sd4');
  Form.Element.disable('sd1');
  Form.Element.disable('sd2');
  Form.Element.disable('sd3');
  Form.Element.disable('sd4');
}

function hidefd_and_adresat(){
  adresat2();
  disable1();
}

function hidesd_and_adresat(){
  adresat1();
  disable2();
}

function hide_nb(){
  var form = $('nb1');
  var form = $('nb2');
  var form = $('nb3');
  Form.Element.disable('nb1');
  Form.Element.disable('nb2');
  Form.Element.disable('nb3');
}

function hide_mt1(){
  var form = $('mt1');
  Form.Element.disable('mt1');
}

function hide_mt2(){
  var form = $('mt2');
  Form.Element.disable('mt2');
}