Create empty object from XML schema using JSONIX

is it somehow possible to generate an empty object from an XML schema with JSONIX? I generally have problems creating new JS objects that fit to the XML schema. Thus, this would be really helpful. Any example would be very appreciated. I tried the following to create a new object. NodeType is a complex type name in this case.

{name: {localpart: nodeType}, value:{}};

Then I tried to fill values (I traverse through the schema mappings to find out all possible properties for each type). However, I get e.g. the following error that does not help me very much: Element [ELEMNAME] is not known in this context

Thanks a lot for any idea!