On events? Turn it off?
<p>On keyup my script does something, I was wondering if I could turn it off, as in, I only want it to check one key up.</p>

<pre><code>ckEditorNewsArticle.document.on("keyup", function(){
</code></pre>

<p>Edit:</p>

<pre><code>ckEditorNewsArticle.document.on('keyup', function(){
                      alert('key up');
                });
</code></pre>

<p>This works. But I cant get it to fire only once, by using one.</p>

<pre><code>ckEditorNewsArticle.document.one('keyup', function(){
                      alert('one');
                });
</code></pre>
