title: is there a way to get the intersect of selectors in jQuery
body: <p>I have a set of 4 elements.  each one belongs to 2 of 4 classes, so each class combination is unique.  I want to find a way, with jQuery, to select only one of the elements, based on it's unique class combination.  Is this possible?</p>
  
  <p>I'm expecting something like</p>
  
  <pre><code>$(".class1 &amp; .class2")
  </code></pre>
  
  <p>is this reasonable?</p>
  
  <p>jsFiddle example:
  <a href="http://jsfiddle.net/7UfYH/" rel="noreferrer">http://jsfiddle.net/7UfYH/</a></p>