caching jQuery collection sets
<p>If I create an object like this:</p>

<pre><code>var Obj = {
  numberSet: $('input[type="text"].number'),
  alphaSet:  $('input[type="text"].alphabetic'),
  etc...
};
</code></pre>

<p>Is the collection set cached in the key, therefore I do not need to cache using a separate variable?  Thanks!!</p>
