HI Dennis,
Yep this is almost what I need but what I really need is a bit complex 
is it possible to add the renderer to the title itself ?
that instead of using it like oRm.write(oControl._title.getText()); I will use it like
oRm.renderControl(oControl.getAggregation("_title"));
I need the renderer since I call to this title from other custom control.
I know that this is some advanced topic but how would you do that?
I know that somehow I should Inherit from control to have the rederer but how you suggest to do it?
Thanks!,
Stephane