Matching Siblings

Hi all,
	I'm attempting to transform the following

<go/><postfield id="A"/><refresh/><postfield id="B"/>

into....

<go><postfield id="A"/></go><refresh><postfield id="B"/></refresh>

i.e. Wrap the 'postfield' element in a 'go' until a 
sibling is encountered which isn't a 'postfield'.
In this case it's 'refresh'. The same rules apply for 'refresh'.

At the moment I'm attempting to recurse through each individual
following-sibling of the 'go' or 'refresh', checking if it's a 'postfield'.
If it's a 'postfield' then I copy it into the 'go' otherwise I move on.
I won't include my code since it's useless ;) but any help is appreicated.

Cheers.
Ciaran.




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