summary vs. caption

In relation to mark up for data tables, can anyone clarify for me what
summary="blah" and <caption>blah</caption> intended to do and if I need to
have them both. I seem to be using the same bit of text for both and have
come to the conclusion that either I'm using one of them incorrectly or I
should only be using one of them (but which one).

tia

Julian

Julian Scarlett
Web Design & Document Management System Officer
PPU
Education Directorate 
Sheffield City Council
0114 2735721
mob 07904914976
julian.scarlett@sheffield.gov.uk 

The information in this email is confidential. The contents may not be disclosed or used by anyone other than the addressee.  If you are not the addressee, please tell us by using the reply facility in your email software as soon as possible. Sheffield City Council cannot accept any responsibility for the accuracy or completeness of this message as it has been transmitted over a public network.  If you suspect that the message may have been intercepted or amended please tell us as soon as possible.

Received on Tuesday, 4 December 2001 07:46:29 UTC