Image tracking via google analytics
<p>I have an image which is being generated by php via </p>

<blockquote>
  <p>.htaccess</p>
</blockquote>

<p>and </p>

<blockquote>
  <p>header("Content-type: image/jpeg");</p>
</blockquote>

<p>How do I use Google Analytics with it? As the PHP-File uses header, inserting the javascript-code would lead to</p>

<pre><code>headers already sent
</code></pre>
