jsTree onSelect event

Update in 2018.

Thanks to @ProfK's comment, the API has changed in new version of jstree. In jstree v3.1.0 (or earlier), the API has changed to:

$("#treeContainer").on(
        "select_node.jstree", function(evt, data){
            //selected node object: data.node;
        }
);

---

For jstree old version (before 2013).

You can get the selected node object and its text by:

$("#treeContainer").bind(
        "select_node.jstree", function(evt, data){
            //selected node object: data.inst.get_json()[0];
            //selected node text: data.inst.get_json()[0].data
        }
);

jstree new version for get text from node should use data.node.text

$("#treeContainer").on("select_node.jstree",
     function(evt, data){
          alert(data.node.text);
     }
);