The site was built for and on behalf of Butterfly Knights Productions by Ali Blackwell, a London Web Designer
This site has been built using the JQuery Javascript Library. The designer embraced the principle of Progressive Enhancement. To quote Wikipedia:
Progressive enhancement uses web technologies in a layered fashion that allows everyone to access the basic content and functionality of a web page, using any browser or Internet connection, while also providing those with better bandwidth or more advanced browser software an enhanced version of the page.