Hi Charles, Thanks for taking your time to investigate my issue
However, the site you see is not a demo, it's "fully" functional calculator for css dimensions. :) When you start typing, you fire different events, and - yes - they affect whole tree & that's intentional. But the thing that only bugs me is adding new nodes. I'll try optimizing filters more aggresively, but unfortunately I did similar thing before and it didn't make a difference. About other things that you've said: I don't get the JSLint comment; and my code don't need to be wrapped in closure because it's not a plugin and it won't be used anywhere else. :) -- Piotr Petrus http://riddle.pl
