Javascript Change image on click
<p>I have a some images</p>

<pre><code>&lt;img src="hey.png" alt=""/&gt;&lt;img src="asf.png" alt=""/&gt;&lt;img src="3.png" alt=""/&gt;&lt;img src="4.png" alt=""/&gt;
</code></pre>

<p>How to make sure that when you click on the picture - these 4 images were interchanged arbitrarily (random)?</p>
