title: Joomla 3.1 full article image to be "clickable" how can I add a link to the picture?
body: <p>I want to add link to the full article image, how to do this? I have to modify the article component?</p>
  
  <p>I want to add to the component an option, Image link like this ...
  <img src="https://i.stack.imgur.com/xkRt1.jpg" alt="enter image description here"></p>
  
  <p>It is possible ? </p>
  
  <p>Or I have another Idea, It would be the best if the full article image shows floated near the article in a given size (example: 400px) and when the users click on the picture, the picture will show in the real size (example: 800px, or full screen) in a light box... it exists plugins for this ?</p>