Enable button in JQuery dialog
<p>I can disable it fine using this:</p>

<pre><code>button.attr('disabled', 'disabled' ).addClass( 'ui-state-disabled' );
</code></pre>

<p>But how do I re-enable it? When I use this:</p>

<pre><code>button.attr('enabled', 'enabled' ).addClass( 'ui-state-enabled' );
</code></pre>

<p>It doesn't work.</p>
