mootools (core+more+clientcide) behaves quite nice with the javascript
optimizer at
http://closure-compiler.appspot.com/home
Only pattern like for (var i = 2; i--; i){} lead to ignorable
warnings. The compiler runs in the cloud on google's app engine
framework accepting POSTs using curl or local (
http://closure-
compiler.googlecode.com/files/compiler-latest.zip) and fits perfectly
in a scripted, automated process.
I could reduce overall loading time and size by more than 30% with
simple optimisation. Still re-writing code for the advanced
optimisation, though.
Just for the early adapters.
--noiv