More options:
http://www.jsfiddle.net/ZXrC6/2/
@penter, until injected into the DOM, the response is an isolated
nodelist. You can't use -ById or -byClassName (or any convenience
methods that wrap those native methods) because those methods require
that the nodes have a DTD that defines 'class' and 'id' as special
attributes. (It is possible to load a DTD for isolated collections
and/or foreign documents, but don't even bother trying this for your
application).
-byTagName -- Oskar's getElement('a') -- will still work on the
isolated nodelist, as will a dumb attribute selector as in my 2
addenda. Note that a dumb attribute selector is not optimal for very
large collections since any high-performance indexing on special id
and class won't be used.
