I spend 40+ hours a week knee deep in javascript, css and php, but lately mostly javascript and css. I’m responsible for making everything over at www.lijit.com not only provide a great user interface, but work in Firefox, Internet Explorer 6/7 and Safari 2/3, I never seem to have the time to get to Opera =-\

That being said, I’ve dealt with all manners of javascript and css trickery. Granted, I use prototype and scriptaculous to do most of the heavy lifting. None the less,  I feel qualified to answer all manners of questions in this space. So, ask away: @ me on twitter: http://twitter.com/cranberyxl, This way we can keep the answers out in the open, and if I don’t know the answer, may be someone else does. I fI cant’ answer in 140 characters, I’ll link to a blog post back here.