Since ShippingAddress1, ShippingAddress2.... is generated by your asp code,
you can put the counter field<hidden textbox> ,so that you can know ,number of elements
needs to be check.
if asp code generate 10 Addresses ,then ShippingAddress1,2...10
<input type=text name="counter" value=10>
this value must come from the no. of records in the recordset.
hope this will help you