rder
            if (size > 1) {
                left = true
                right = true
            }
            result[depth].push({id: colId, span: size, leftBd: left, rightBd: right})
            return size
        }

        this.getTableElement = function (id) {
            return document.getElementById("df_" + id)
        }

        this.getTableData = function (id) {
            return this.getTableElement(id).df
        }

        this.createExpander = function (isExpanded) {
            const 