Manual shipping plugin - Access of custom fields

-- HikaShop version -- : 2.4.0
-- Joomla version -- : 3.3.6
-- PHP version -- : 5.3.27
-- Browser(s) name and version -- : Chrome 41.0.2272.76 m

Hi,

Could you please give me an advise, how I can access a custom field at shipping
from the description field of the manual shipping plugin?

I use iframe with html in the description field and javascript for the listing of
external addresses. The selection is working, if I use jquery alert it gives back
without error the selected external address.

If I try to send the selected address to the custom field at shipping,
(jQuery('#pickpackpont_boltkod').val(selectedShopId+' # '+selectedShopData)
it is unfortunately not working.

Is it possible, to access the custom fields at shipping from iframes
(stored in shipping plugin description fields) ?

Thank you for your help in advance.

Hi Jerome,

Yes, it is complicated. I will test it without iframe.
My another shipping method is working this way.

Thank you for your help.