Yikes. Whoever created kontain.com did not know what they were doing. Not only does it break some basic browser functionality, like opening a link in new tab, but because it is all flash it is also painfully slow. It takes 9 seconds to display the first page (which is very simple and would render in under 2 seconds if it was done in HTML) and 14 seconds for every photo page. I bet it also doesn't play well with mobile browsers.
Using this site as an example of "professionalism" is just wrong.
Why would you want that? That’s crazy. Flash should be used as a last ressort. Video. Games. That sort of stuff. Use friggin’ html for the rest and do not confuse your users.