Added a bit of JavaScript.
Added background color and a border to posts

Maybe too brownish?
Fixed a bug in the javascript toggle.
Messing around with the styling of posts
'Hide' now changes to 'Show' when hidden. It just makes more sense.
Now blurs (unselects) the anchor after clicking it. Looks cleaner.
Set a max-width for .thread.
Messed around with the .thread style again.
Changed the background color
made the right menu semi-transparent. Thoughts?
Added a bit of JavaScript.
The board now shows replies! Great success.
Removed stuff that wasn't supposed to be added.
Rewrote some PHP to make it more readable and fixed a non-validating part of the header. No text in <ol>, it seems.
<ol> elements now start at 0. It just feels right.
Indented the Poster class in a more pleasing way.
The time field is now displayed in yellow like the name of the poster. It looks more symmetrical, I think.
Fixed poor unicode support in the DB class. Also changed the default font to better support unicode.
Changed the font back for headers.
Images are now expanded when clicked.