How to show unread/read status of forum post's like vbulletin, phpbb, others?

Question

This is the million dollar question, I see it time and time again on here and other php coding related sites and forums but I have NEVER seen an answer to it.

So I sta

Answer 1

cookie limit in ie :

at most 300 cookies

at most 4096 bytes per cookie (as measured by the size of the characters that comprise the cookie non-terminal in the syntax description of the Set-Cookie header)

at most 20 cookies per unique host or domain name