Basically I have a site that lists all the translation software’s in the market, the thing is when I register a new software I have a checkbox group with languages to form the “from language” dropdown field in the search, and another checkbox group to form the “to language” field, the problem is not all languages in the “from” group make language combinations with the “to” field…
For example a software can translate
(from) Portuguese-English (to)
(from) German-French (to)
but not necessarily Portuguese-French or German-English… how could I make the input so that these language combinations come up in a search but not if Por-Fr or Ger-Eng..
The solution I can think of is to create one checkbox group with all the languages available and depending on what languages where selected there would come up another checkbox group with all the language pairs from the languages selected where it would be possible to uncheck the pairs not supported..
but now how to put this together?