[jQuery] jQuery.event.trigger internals: why is click/onclick on a tags skipped?

[jQuery] jQuery.event.trigger internals: why is click/onclick on a tags skipped?


Code in question:
http://code.google.com/p/jqueryjs/source/browse/trunk/jquery/src/event.js#256
http://code.google.com/p/jqueryjs/source/browse/trunk/jquery/src/event.js#262
Why is it not triggering events if it's "click" on "a" elements? And
where is "click" on "a" elements handled?