After each times click an increasing number?
<p>I want after each times click value <code>2011</code> an increasing number, how is it?</p>

<p><strong><a href="http://jsfiddle.net/6ydUR/1/" rel="nofollow">Example:</a></strong></p>

<pre><code>$('button').click(function() {
    var num = '2011';
    var out = num ++1;
    alert(num); // i want this output: 2012
});
</code></pre>
