Speed difference between very similar jQuery expressions in IE
<p>In IE, compare the speed of execution of an expression along the lines of</p>

<pre><code>$('div.gallery div.product a");
</code></pre>

<p>to the very similar</p>

<pre><code>$('div.gallery').find("div.product").find("a");
</code></pre>

<p>Sometimes the second variant runs faster, sometimes slower.  Often the speed difference is a factor of 2 or more.  What is going on?</p>
