DOM3 Core implementation
Nowadays lots of developers are talking about HTML5 and CSS3. A bit fewer of them are talking about ES5 (EcmaScript5). But it looks like most of them nearly forgot the DOM3 specification and I don't think it's right because DOM3 implementation in browsers is really poor and should improve. That is why I created the DOM 3 Core implementation test. In future I want to add more parts of DOM3 like "DOM3 Events", "DOM3 XPath", "DOM3 Load and Save" etc.
Anyway, in the latest Opera build (9044) Opera implemented CustomEvents and few other things from DOM3 so there is hope that there will be more in the near future.
So if you are interested what your browser can do from DOM3 go here: