function GetSel(id){
	return GetId(id).options[GetId(id).selectedIndex].value;
}
function CopyAddress(){
	var address = GetId('b_address').value;
	GetId('s_address').value = address;
}
function CopyZip(){
	var zip = GetId('b_zip_code').value;
	GetId('s_zip_code').value = zip;
}
function CopyTown(){
	var location_id = GetSel('b_location_id')-1;
	GetId('s_location_id').selectedIndex = location_id;
}