What does this code mean in plain engish?
<pre><code>$(".refine_button").click(function(){
var butt = $(this);
$(this).next(".refine_block").slideToggle("normal", function(){
        butt.children(".refine_icon").toggleClass("opened");
        });
});
</code></pre>

<p>In particular the 'butt.children'</p>

<p>Thanks</p>
