Selectors go from right to left. Starting with a generic 'a' is kind of slow. Also...

Selectors go from right to left. Starting with a generic 'a' is kind of slow. Also loses the advantage of an id-selector.
* Optimizing by selecting the ID seperately (very fast) and doing a find() within that context (also caching pCactions ).
* while at it:
 - caching selector
 - aliasing $ to jQuery locally
 - Shorthand dom-ready

(Follow-up r86861)