title: Select area of an image and trigger a JS event
body: <p>Is it possible, using either HTML canvas or Javascript, to click on part of an image and, depending on which part you clicked, it trigger a Javascript event?</p>
  
  <p>So, for example;</p>
  
  <p>If I have an image of a watch and the user clicks on the strap, this triggers a modal with content relating to the strap. Similarly, if they click on one of the watch hands, this triggers a different modal.</p>