> Currently the Definition List in the HTML3 draft calls for a single list 
> header. I would like to propose two header tags similar to those available in 
> SGML: <dthd> and <ddhd>. This provides the browser client with greater display 
> flexibility and the means for creating headers over the <dt> and <dd> columns.
I agree.  This would be a good function to have and the tag names seem 
reasonable.
Dave Morris