/* get item and member from a column number */
_getitem(sernum)
{
        local item, member;

        if (sernum > getwcount()) sernum = 1;

        /* get item value */
        item = _col2itm(sernum);

        /* get member value */
        member = sernum - itemcol(item) + 1;

        if ((itemtype(item) != 9 && itemtype(item) != 2) || getplottype(0) != 6)
        {
                member = 1;
        }

        return(item, member);
}