var billAddr1 = "";
var billAddr2 = "";
var billCity = "";
var billState = "";
var billZip = "";
var billCountry = "";

function InitSaveVariables(form) {
billAddr1 = form.billAddr1.value;
billAddr2 = form.billAddr2.value;
billCity = form.billCity.value;
BillState = form.billState.value;
billZip = form.billZip.value;
billCountry = form.billCountry.value;
 }

function ShipToBillPerson(form) {
if (form.copy.checked) {
InitSaveVariables(form);
form.shipAddr1.value = form.billAddr1.value;
form.shipAddr2.value = form.billAddr2.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;
 }
else {
form.billAddr1.value = billAddr1;
form.billAddr2.value = billAddr2;
form.billCity.value = billCity;
form.billState.value = billState;
form.billZip.value = billZip;
form.billCountry.value = billCountry;
    }
}