Avoiding breaks in timer and timeout functions

Many (most) Javascript-based RIA frameworks use setTimer()/setTimeout to simulate sort of a mutithreaded client-side execution environment. So whenever you tell DF to break on new script, it breaks in such a timed function. It would be nice to have a way to tell it "break on new script except if it's started by a timer event".

AFAIK, no other Javascript debugger has something like this, in spite of such a feature being very useful. If DF would provide it, it would be a first.