This event calls user-defined handlers (if there are any) and passes the following parameters:

• id - id of the clicked item;
• id - id of the previously selected item.

        tree.attachEvent("onClick", function(id, id){});
 

Here is the example of using onClick event in the tree containing items with link-like functionality:

    <script>
        tree.attachEvent("onClick",function(id){
            window.open(tree.getUserData(id,"href"));
            return true;
        });
    </script>