title: Add rel="lightbox" to image (forced by javascript/jquery)
body: <p>On my website I have an image. I try to add a rel="lightbox" because I want to open the image in Lightbox when I click it. But I'm not able to change this part of the HTML code. Is there another solution to 'force' the rel with something like Javascript or jQuery?</p>
  
  <p>This is the HTML code I want to add the rel="lightbox"</p>
  
  <pre><code>&lt;div class="gv_panel" style="width: 240px; height: 290px;"&gt;
  &lt;img style="visibility: visible; " src="t-shirt.jpg"&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>Is there any solution for this??</p>