Levels of DOM
- Level 0 - Early versions of DOM in web browsers
- Level 1 - It concentrates on the HTML and XML document models:
- Level 2 - It defines a set of objects and interfaces for accessing
and manipulating document object. It includes a style sheet object model.
- Level 3 - It will address document loading and saving, as well as content
models (such as DTDs and schemas) with document validation support.