Ajax interactive map

Hello everyone,

I'm new to this forum and new to jquery. So, I'm trying to create an interactive map. However, next to the map there's going to be a form (e.g. with checkboxes). Say, we have a map of europe and a form with options such as "has sea" or "has english as main language" and so on. When the user selects an option, a query is made to the database finding all the countries that fulfill the selected criteria. Then, these countries are highlighted and they are clickable while the other ones are not.

Is there something modifiable on the internet? I googled it but didn't find anything quite similar.

Thank you for your help.