Excel search plugin

Hi,
Just to clarify a bit more of what I’m trying to track down. On this website one of the widgets says “Flotilla”, this is the search form: http://www.sailingchoices.com/, then you get taken to a page like this: http://www.sailingchoices.com/prices/flotilla-holiday-prices/?countryarea=Croatia&date=02-05-2015&duration=1&people=4#FSContact10

If you’re looking at the source code ignore anything that says “Yachtbooker”, that’s another search system.

Any help is much appreciated.

Cheers.