// JavaScript Document

function FillBilling(f) {
  if(f.billingtoo.checked == true) {
    f.billing_address.value = f.address.value;
    f.billing_city.value = f.addr_city.value;
    f.billing_st.value = f.addr_st.value;
    f.billing_zip.value = f.addr_zip.value;
    f.billing_country.value = f.addr_country.value;
    /* If more fields are used, just expand the parameters
       above to include the additional fields. */
  }
}