Date picker wheel in HTML/CSS

Actually starting to work on my own private website. And would love to have the iOS date picker wheel on it. But couldn't find it in HTML/CSS, so I had to give it a try myself. Still needs some tuning. But it's fun to see it work in the browser (http://www.svenread.com/ - Beware: Still a bit buggy and I could just be working on it :)...).