@MtnPavlas
I am looking for "Search JS", not sorting. But that was a good hint. The product pages use different Octopoos add-ons i.e.: rating (checkbox numeric), sorting etc.
There is also a link on "type", which seems to be "Search JS", right. That is more or less what i knew from other extensions.
I would also like to see the configuration. What are the requirements and restrictions. Does it work on any type of field etc. ...