[xsl] How to strip all optional but empty elements from a XML doc?

["Ben Stover" <bxstover@xxxxxxxxxxx>]

Assume I have a XML doc and a XSD schema file which defines mandatory and optional element fields.

How can I now go recursively through the whole XML document and find all elements which are optional (e.g. minoccurs=0)
but currently EMPTY. These empty, optional elements should be stripped off so that the resulting XML does not contain them any more.

How can I achive this with an XSLT script?

Ben