How was this done?

www.edlokawa.com/

The above link takes you to Edlo Kawa's website.

What a beautiful website it is.

I'm just wondering how the off-square square shapes would be created using AS3? If it's AS3 that's been used that is.

Hopefully you'll see what I mean by this.

It's just all aspects of the website, the menu, and the outer white shape around images appear to be not quite square, and I feel it's quite a smart look..

Any ideas how this is done?

Thanks!