Relative Font Sizes
A List Apart has a good article on how to do relative font-sizes in your webapps.
Relative font sizes may make websites more accessible -- but they're not much help unless the person using the site can find a way to actually change text size. Return control to your audience using this simple, drop-in solution.
I'll have to remember this the next time I need relative fonts in a webapp. I've just been using "font-size: 12px" on the body
and "em" for everything else. Sure resizing fonts doesn't work in IE, but no one has complained yet. And since I use Safari or Firebird/fox all the time, I never notice.
Also spotted this morning - the Sarissa JavaScript library for parsing XML with JavaScript. You might wonder why I care? Because the bug-ridden twisty comments in Roller use JavaScript XML parsing and I could use a better solution.