function displayShip(form) {
  if (form.ship_to_same.checked) {
    form.shipFirstName.disabled=true;
    form.shipFirstName.className = 'disabled';
    form.shipLastName.disabled=true;
    form.shipLastName.className = 'disabled';
    form.shipAddress.disabled=true;
    form.shipAddress.className = 'disabled';
    form.shipCity.disabled=true;
    form.shipCity.className = 'disabled';
    form.shipState.disabled=true;
    form.shipState.className = 'disabled';
    form.shipZip.disabled=true;
    form.shipZip.className = 'disabled';
    form.shipCountry.disabled=true;
    form.shipCountry.className = 'disabled';
    form.shipPhone.disabled=true;
    form.shipPhone.className = 'disabled';
    form.shipFirstName.value = form.billFirstName.value;
    form.shipLastName.value = form.billLastName.value;
    form.shipAddress.value = form.billAddress.value;
    form.shipCity.value = form.billCity.value;
    form.shipState.value = form.billState.value;
    form.shipZip.value = form.billZip.value;
    form.shipCountry.value = form.billCountry.value;
    form.shipPhone.value = form.billPhone.value;
  }
  else {
    form.shipFirstName.disabled=false;
    form.shipFirstName.className = 'enabled';
    form.shipLastName.disabled=false;
    form.shipLastName.className = 'enabled';
    form.shipAddress.disabled=false;
    form.shipAddress.className = 'enabled';
    form.shipCity.disabled=false;
    form.shipCity.className = 'enabled';
    form.shipState.disabled=false;
    form.shipState.className = 'enabled';
    form.shipZip.disabled=false;
    form.shipZip.className = 'enabled';
    form.shipCountry.disabled=false;
    form.shipCountry.className = 'enabled';
    form.shipPhone.disabled=false;
    form.shipPhone.className = 'enabled';
  }
}