I'm not yet sure how I will name my library which is similar to Google Web Toolkit and is based on my RubyJS. Yesterday, I implemented some DOM related stuff in under two hours. GWT uses class methods of the DOM class everywhere, e.g.:

DOM.setElementAttribute(Element elem, String attr, String value)

I don't follow this approach, because I think it's more elegant to move them into an Element class and make it an instance method instead:

el = Element.createDiv
el.setAttribute("a", "b")

The same applies to Events. This allows me to write for example:

Element['root'].appendChild(
  Element.createDiv.setInnerHTML('abc').
          setAttribute('title', 'tooltip'))

instead of:

root = DOM.getElementById('root')
elem = DOM.createDiv
DOM.setInnerHTML(elem, 'abc')
DOM.setElementAttribute(elem, 'title', 'tooltip')
DOM:appendChild(root, elem)

which looks much less like OO in my hence opinion.