The Why and How of XML Data Islands
http://www.devarticles.com/c/a/XML/The-Why-and-How-of-XML-Data-Islands/

Krishnaswamy, Jayaram
Dev Articles
2006

Abstract:

This article explains a useful way to embed data in an HTML document, and store it on the client, using XML. With XML becoming ever more pervasive and the client side implementation gaining a lot of ground, you will probably find yourself using this technique in many projects.