function getType() {
  var dom = document.getElementById('form_type');
  
  changeType(dom.selectedIndex);
}


function changeType(state) {

  var dom1 = document.getElementById('forma_uhrady');
  var dom2 = document.getElementById('forma_zaslania');
  var dom4 = document.getElementById('delivery_address');
  var dom5 = document.getElementById('ucel_pouzitia');
  var dom6 = document.getElementById('objednavatel_dodanie_checkbox');
  
  if(state == 0) {
    changeAddress(false);
    dom1.style.display = 'none';
    dom2.style.display = 'block';
    dom4.style.display = 'none';
    dom5.removeAttribute('readonly','readonly');
    if(dom5.value == '---') {
      dom5.value = '';
    }
  }else
  if(state == 1) {
    dom1.style.display = 'block';
    dom2.style.display = 'none';
    dom4.style.display = 'block';
    dom5.setAttribute('readonly','readonly');
    dom5.value = '---';
    dom6.checked = false;
  }
}

function changeAddress(state) {
  
  var dom1 = document.getElementById('objednavatel_dodanie_nazov_firmy');
  var dom2 = document.getElementById('objednavatel_dodanie_adresa');
  var dom3 = document.getElementById('objednavatel_dodanie_mesto');
  var dom4 = document.getElementById('objednavatel_dodanie_psc');
  var dom5 = document.getElementById('objednavatel_dodanie_kontaktna_osoba');
  
  if(state == true) {
    dom1.removeAttribute('readonly','readonly');
    dom2.removeAttribute('readonly','readonly');
    dom3.removeAttribute('readonly','readonly');
    dom4.removeAttribute('readonly','readonly');
    dom5.removeAttribute('readonly','readonly');
    dom1.value = '';
    dom2.value = '';
    dom3.value = '';
    dom4.value = '';
    dom5.value = '';
  }
  else 
  if(state == false) {
    dom1.setAttribute('readonly','readonly');
    dom2.setAttribute('readonly','readonly');
    dom3.setAttribute('readonly','readonly');
    dom4.setAttribute('readonly','readonly');
    dom5.setAttribute('readonly','readonly');
    dom1.value = '---';
    dom2.value = '---';
    dom3.value = '---';
    dom4.value = '---';
    dom5.value = '---';
  }
}

function changeItemType(item) {
  //alert(state);
  var state = item.selectedIndex;
  
  var dom = document.getElementById('pr_lemovanie_2');
  var dom1 = document.getElementById('pr_lemovanie');

  if(state == 1) {
    dom.style.display = 'none';
    dom1.selectedIndex = 0;
  }else {
    dom.style.display = 'block';
  }
}