title: Find node clicked on jsTree click event to expand or collapse
body: <p>I have 4 levels of tree: </p>
  
  <pre>
  - Reg1
    -level 2
     -level 3
        -level 4
    +level 2
  +Reg2
   level 2
      level 3
        level 4
    level 2
  +Reg3
   level 2
      level 3
        level 4
    level 2
  +Reg4
   level 2
      level 3
        level 4
    level 2
  </pre>
  
  <p>I have implemented this using using <code>struts2 jQuery JSTree</code> plugin using JSON data.</p>
  
  <p>If I select any child node (e.g.: Reg1 --> Level 2 --> level 3 --> level 4), when I try to collapse or expand the tree node which contains the selected child (level 4), it triggers the click event.</p>
  
  <p>When I expand/collapse on the other nodes which are in a different hierarchy (Reg 2 or Reg 3 or Reg 4), then it won't trigger the click event.</p>
  
  <p>Is there anyway we can capture which element is clicked on the click event, so that if it's an image with INS tag then I can skip my logic?</p>