});
				}
				return ret;
			},
			move_node : function (obj, ref, position, is_copy, is_prepared, skip_check) {
				if(!is_prepared) {
					return this.prepare_move(obj, ref, position, function (p) {
						this.move_node(p, false, false, is_copy, true, skip_check);
					});
				}
				if(is_copy) {
					prepared_move.cy = true;
				}