Template:UserStatistics:DifferenceToXmlDoc syntax
%doc = userStatistics:DifferenceToXmlDoc( ustatOld, [Zeros= boolean], - [AttributeValues= boolean], - [AttributeNames= boolean], - [NamesToLower= boolean])
%doc = userStatistics:DifferenceToXmlDoc( ustatOld, [Zeros= boolean], - [AttributeValues= boolean], - [AttributeNames= boolean], - [NamesToLower= boolean])