How do I set up "var count" so that it is initialized the first time and then incremented?
<p>I tried <a href="http://jsfiddle.net/8xPDE/" rel="nofollow">this</a>:</p>

<pre><code>var count;

function testCount ()
{
  if (count)
  {
    alert("count is: " + count);
    count++;
  }    
  else
  {    
    alert("count is: " + count);
    var count = 0;
  }
};

testCount();
</code></pre>

<p>but it always gives "undefined" and the value of count is not updated when I run it again in jsfiddle.</p>
