Button.Click event is not firing up
<p>I am new in JQ. I have created this fiddle here: <a href="http://jsfiddle.net/SZ6mY/7/" rel="nofollow">http://jsfiddle.net/SZ6mY/7/</a></p>

<p>All I want to do is to show an "ALERT" message when "C" button is clicked. Also I want to know that if you click "7" how you grab the value 7 in a variable in JQ?</p>

<p>Any input is appreciated! Thanks.</p>
