The question that led me to this post was: how can I manage complex XML namespaces using jQuery? Fortunately, I found this article by IBM where everything is explained in greater details. To be honest, I don't see the point in writing more here, because this article is really exhaustive. Instead, when I'll have more spare time, I'm going to test something. The article is also available in PDF format and you can download all the examples too. Hope that helps.