title: How to open a popover on the mouse click location
body: <p>I have loaded an image on my HTML page and I'd like to open a popover from Twitter Bootstrap right over the mouse click position. 
  What I have done so far is to open the popover on the side of the image. But what I really want to do is to open the popover wherever I've clicked on the image. </p>
  
  <p>How can I achieve this?</p>