Changing prefix

 Hello

 I have an app that uses MathML, and gathers some stats from it.
 But i ran into a problem when using mml tags embedded in docbook,
 as this app uses the "math" prefix, and in docbook mathml tags
 are prefixed with "mml".

 I am trying to do a stylesheet that copies all mathml elements,
 including attributes, data etc.. just changing the prefix.

 Any idea ?
 Nicolas