[Seaside] Changing object class

[Oleg Richards]

Hello Guys!

Following question (maybe its a little bit "smalltalkish"):
I have an object - an instance of RowNumeric class. I also have 2  
classes derived from this class. Can i change instance class from one  
derived to another without touching instance variables.

So i have RowNumeric with all needed variables. And now i want to  
convert some numeric rows to total ones.

Cheers, Oleg