i');

                    if (options.closeOther && li.hasClass('tree-closed')) {
                        var siblings = li.parent('ul').find("li:not(.tree-empty)");
                        siblings.removeClass("tree-opened");
                        siblings.addClass("tree-closed");
                        siblings.removeClass(options.activeSelector);
                        siblings.find('> ul').slideUp(options.delay);
                    }

                    li.find('> ul').slideToggle(options.delay);
