Just wanted to point out that, using the arcane magick known as [CSS triangles, it's totally possible to recreate this effect with just CSS. [url=http://jsfiddle.net/TVkUw/]Here's my attempt.](http://davidwalsh.name/css-triangles)
The best part is, it works in all browsers!
...Because it uses a bunch of empty, extraneous HTML!
...And it won't help you at all when it comes to variable heights, because you have to do a lot of ugly, explicit size declarations.
...not to mention how much of a pain it would be to change and adapt to new elements...
But hey, it saves you an HTTP request :/