obj = obj ? this._get_node(obj) : this.get_container();
				if(!obj || obj === -1) { obj = this.get_container_ul(); }
				obj.find("li.jstree-open").addBack().each(function () { _this.close_node(this, !do_animation); });
				this.__callback({ "obj" : obj });
			},
			clean_node	: function (obj) {
				obj = obj && obj != -1 ? $(obj) : this.get_container_ul();
				obj = obj.is("li") ? obj.find("li").addBack() : obj.find("li");