function FillBilling(f) {
  if(f.billingtoo.checked == true) {
    f.qbilltoaddress.value = f.street.value;
    f.qbilltoaddress2.value = f.qshipaddress2.value;
	f.qbilltocity.value = f.city.value;
	f.qbilltostate.value = f.state.value;
	f.qbilltozip.value = f.zip_code.value;
	f.qbilltocountry.value = f.country.value;
    /* If more fields are used, just expand the parameters
       above to include the additional fields. */
  }
}