ecart checkout and dynamic drop downs

On the ecart checkout page I have implimented dynamic dropdowns for the country and state province, and shipping_country and shipping_state_province because we ship world wide and I wanted to feed these from a db table(s).

This actually works fine.

Where I', stuck is with the "Shipping Same as customer address" check box.
I can get the country to copy fine, however I can't get the state_province.

Any Ideas?

Thanks,

Jim

In order for the billing and shipping info to copy over correctly they rely on having the default names for the form elements. If you have changed either the billing or shipping name of this element it can cause problems. Here are the names that are used internally in the function:

var billingFields = new Array('firstname', 'lastname', 'email', 'phone', 'fax', 'street1', 'street2', 'city', 'state_province', 'postcode', 'country');
var shippingFields = new Array('shipping_firstname', 'shipping_lastname', 'shipping_email', 'shipping_phone', 'shipping_fax', 'shipping_street1', 'shipping_street2', 'shipping_city', 'shipping_state_province', 'shipping_postcode', 'shipping_country');

If you have any further trouble with this please post back with a copy of the form on the checkout page so we can take a look.