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...yags is I want to perform a Small Sample Adjustments by Michael P. Fay and Barry I. Graubard in Biometrics, 2001, 57: 1198-1206. I'm working on some dental data (I'm a dentist) with repeat measurements on relatively small sample sizes (around 20 to 50 teeth), and GEE seems to be quite ineffient (i.e. less powerful) compared to other methods. I wonder it is really due to the sample size is too small, and GEE should not be used? Many thanks in advance. best regards, Yu-Kang

While $$ and getElementsByClassName are ridiculously speedy in Firefox (thanks to XPath), I''m finding both functions to be intolerably slow in IE. The page I''m working with has fewer than 1000 elements -- doesn''t seem THAT big -- and it''s still taking upwards of 4 seconds (!) to pick out the right ones. Are there documented problems with particular