Stocking machine readable data in a ‘td’ tag

To stock ‘machine readable’ information about a table cell use the abbr tag:

<td abbr="my_data">

Might come in handy for example when you try to give jQuery a handle on specific table cells when id and class tags are already in use.

The ‘abbr’ attribute is an official attribute of the td tag in HTML 4.01/XHTML 1.0 DTD in compliance with S=Strict, T=Transitional, and F=Frameset.