else {
                            if($this.children("ul").children("li.jstree-unchecked, li.jstree-undetermined").length) {
                                $this.parentsUntil(".jstree", "li").andSelf().removeClass("jstree-checked jstree-unchecked").addClass("jstree-undetermined");
                                if(rc) { $this.parentsUntil(".jstree", "li").andSelf().children(":checkbox").prop("checked", false); }
                                return false;