Rendering sorted tables in SwixML

Hello!

In one of my applications I have a lot of tables. I want to make them 
sortable (i. e. the user should be able to sort the table according to a 
column by clicking the header of that column).

At

http://www.fawcette.com/javapro/2002_08/magazine/columns/visualcomponents/

I found source code of such a sortable table.

All of my UIs is written in SwixML. Therefore I want to extend SwixML so 
that I can just replace "<table>" by "<sortedtable>" in the XML files.

Has someone already used SwixML for rendering custom components?

TIA

dap