Hello,

I click on this button
http://www.pochvalsa.eu/images/step1.png
open this window
http://www.pochvalsa.eu/images/step2.png

If I click insert so the insert the code

<img src="http://url/img.jpg" alt="" width="300" height="300" />

My question is:

How I modify source code to the code :

<a class="modal" href="http://url/img.jpg">
<img src="http://url/img.jpg" alt="" width="300" height="300" />
</a>