I'm working on a Wordpress website for a friend and want to put a calendar on a page that when the mouse scrolls over a country for the country to light up and display some information as well as give the user some options to download a pdf about that country.
See http://us.fulbrightonline.org/countries/selectedregion/23 to get an idea of what I mean.
Just need to get a sense of what technologies and tools are needed to make something like this work. I know I will need to utilize an API but the hovering and attaching a pdf to each country is new to me.