PUBLIC MARKS from greut with tag Aria

by Rich Schwerdtfeger from IBM

The attribute describes the role(s) the current element plays in the context of the document. This can be used, for example, by applications and assistive technologies to determine the purpose of an element. This could allow a user to make informed decisions on which actions may be taken on an element and activate the selected action in a device independent way. It could also be used as a mechanism for annotating portions of a document in a domain specific way (e.g., a legal term taxonomy).

how you can improve the definition of what is what. Those roles are present into ARIA.

jARIA is a plugin for the jQuery javascript library that adds ARIA support to Web applications. It is based on a javascript library written for Mozilla by IBM.

it seems to be a good start