Add content to sibling div
<p>In the example below what's the simplest addContent function that will put some content into the child div?</p>

<pre><code>&lt;div&gt;
    &lt;a href="javascript:addContent();"&gt;My Link&lt;/a&gt;
     &lt;div/&gt;
&lt;/div&gt;
</code></pre>

<p>Clicking the link should result in:</p>

<pre><code>&lt;div&gt;
    &lt;a href="javascript:addContent();"&gt;My Link&lt;/a&gt;
     &lt;div&gt;Added Content&lt;/div&gt;
&lt;/div&gt;
</code></pre>
