How to define my own js function in jsfiddle?
<p>I want to test how my own function <code>update</code> works on <a href="http://jsfiddle.net/radek/cguQR/2/" rel="nofollow">jsfiddle</a> but when I click the button I get an error that update is not defined.</p>

<p><strong>How can I use my own functions on jsfiddle?</strong></p>
