How can I change an input to be disabled using jQuery?
<p>I have an input looking like this:</p>

<pre><code>&lt;input type="text" value="1.1" size="5" name="Topic" id="Topic"&gt;
</code></pre>

<p>What's the best way to change it so this input is disabled using jQuery?</p>

<p><strong>Update</strong></p>

<p>Sorry I forgot to ask but is there also a way that I can make it read only. The original answers are great but this is just one more thing I need to be able to do.</p>
