Set Encoding for XMLSerializer dynamically

[Ali Mahdoui]

Hi,i am using cocoon 2.2 and i want to set the encoding for the xml serializer 
dynamically depending on the return value of a previous action.for example like 
this <serialize type="xhtml" status-code="200" encoding="{charsetEncoding}"/> 
...For the moment i can only set the encoding in the bean definition...  Is 
that possible? Thanks