chaining and getting the value of an input
<p>This code gets the text that's in a certain column of a table row:</p>

<pre><code>var keyA = $(a).children('td').eq(column).text().toUpperCase();
</code></pre>

<p>Q: How do I rewrite this to get the value of an input tag that's in the table cell?</p>

<pre><code>var keyA = $(a).children('td').eq(column).('input').val().toUpperCase();
</code></pre>
