Find unique attribute update children value with jQuery
<p>I would like to update the following:</p>

<pre><code>&lt;a data-fb="4dfsdgdsgsdfgsdfgcf08" class="fb-like" href="#"&gt;
&lt;span class="like-icon"&gt;Likes:&lt;/span&gt; 10&lt;/a&gt;
</code></pre>

<p>I wish to update the value '10' with a result returned from a web service, I have the result stored in a variable called fbNumber. The data-fb attribute is unique so I wish to search for this and update the value.</p>
