Omni Systems, Inc. Mif2Go User's Guide, Version 55
> 27 Marking HTML table cells for WAI > 27.3 Using the id/headers method to identify table cells > 27.3.4 Column-group and row-group extent
Figure 27headers="colgrp1"
or headers="rowgrp2", or both, when ColGroupIDs=Yes, RowGroupIDs=Yes, ColGroupHead=colgrp,
and RowGroupHead=rowgrp.
Figure 27
