Can I store custom attributes in HTML DOM like a database record?

Question

When developing for browsers FF3 and IE6/7 with jQuery, are there any compatibility issues when setting custom attributes on HTML tags?

First, I\'m aware of jQuery\'s

Answer 1

The new HTML 5 data attributes might be what you are looking for.

http://ejohn.org/blog/html-5-data-attributes/

http://dev.w3.org/html5/spec/Overview.html#custom