function getBrands() {
  window.open('brands.php', 'Selection',
        'height=400,width=250,status=no,toolbar=no,resizable=yes,scrollbars=yes');
}

function getModels() {
  form = document.getElementById('haku');
  brand = form.brand.value;
  window.open('models.php?brand=' + brand, 'Selection',
        'height=400,width=300,status=no,toolbar=no,resizable=yes,scrollbars=yes');
}

function getProvinces() {
  form = document.getElementById('haku2');
  state = form.state.value;
  window.open('provinces.php?state=' + state, 'Selection',
        'height=400,width=250,status=no,toolbar=no,resizable=yes,scrollbars=yes');
}

function getCities() {
  form = document.getElementById('haku2');
  province = form.provinceid.value;
  window.open('cities.php?province=' + province, 'Selection',
        'height=400,width=250,status=no,toolbar=no,resizable=yes,scrollbars=yes');
}

function getOwners() {
  window.open('owners.php', 'Selection',
        'height=400,width=300,status=no,toolbar=no,resizable=yes,scrollbars=yes');
}

function clearProvinceId() {
  form = document.getElementById('haku2');
  form.provinceid.value = "";
}