find element nth position within parent
<p>If I have this:</p>

<pre><code>&lt;ul&gt;
    &lt;li&gt;&lt;a href="#"&gt;&lt;/a&gt;a&lt;/li&gt;
    &lt;li&gt;&lt;a href="#"&gt;&lt;/a&gt;b&lt;/li&gt;
    &lt;li&gt;&lt;a href="#"&gt;&lt;/a&gt;c&lt;/li&gt;
    &lt;li&gt;&lt;a href="#"&gt;&lt;/a&gt;d&lt;/li&gt;
    &lt;li&gt;&lt;a href="#"&gt;&lt;/a&gt;e&lt;/li&gt;
&lt;/ul&gt;
</code></pre>

<p>And lets say I clicked on third li item (with a content of 'c').
How Could I get the info this item is third within 'ul' parent?</p>
