DOM (Events) in GWT - javascript

I have a bit of a trouble understanding GWT's architecture. I can see two packages: com.google.gwt.dom.client and com.google.gwt.xml.client. As far as I understand, the first gives a wrapper for the HTML DOM and the second is for own DOM Documents. Is this correct?
What I need is an own Document (i.e. not the HTML Document) with Mutation Events. What would I use in this case? Is this possible in GWT or do I have to write my own DOM implementation, based on com.google.gwt.xml.client?

com.google.gwt.dom.client Javadoc :
Classes for low-level DOM programming. This package contains classes that expose the W3C standard HTML document object model for programmatic access and manipulation of HTML pages directly in client-side Java source, accounting for most browser variations. These classes provide an efficient, type-safe, and IDE-friendly alternative to writing JavaScript Native Interface (JSNI) methods for many common tasks
com.google.gwt.xml.client Javadoc :
Basic classes used in XML DOM parsing and XML document generation.
The classes in this package support parsing XML documents and creating new XML documents. The implementation uses the underlying browser.
Briefly, dom.client package is html parser (manipulation of HTML pages) and xml.client is for parsing XML documents. In your situation you can use gwt xml parser and here is good example for it xml parser in gwt

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Visual Studio XML Schema annotations (vs:htmlequivalent)

I'm creating an xml schema for a document that will eventually be translated into javascript. It would be really useful to allow the insertion of custom js scripts right within the document. This isn't hard to accomplish (a node can just contain text, that will be the javascript), but what is difficult is to get Visual Studio to give JS Intellisenseinside the tag instead of xml Intellisense.
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