Catching both values in a dropdown selection

Hey everyone,i was wondering if it is possible to get the values of a selection taken in a dropdown list in two separate form fields. Let me give an example:Our user can select from a couple of stores from a dropdown list. They can see the name of the store but the transmitted value is the store ID@option value=@001@@Berlin, address @ housenumber@/option@ @option value=@002@@Munich, address @ housenumber@/option@ Our callcenter need the store ID to make an appointment in the correct store.What i would like to accomplish is to populate another, hidden field with the the City name and address of the store itself, as seen by the customer.so after a selection i would like the form to submit two fields, with the second beeing hidden to the customer:storeID: 001storeaddress: Berlin, address @ housenumberYour help would be highly appreciated!All the best, Andrei