http://www.w3.org/XML/1998/namespace http://www.w3.org/2000/xmlns/ http://www.w3.org/1999/xhtml http://www.w3.org/1998/Math/MathML http://www.w3.org/1999/XSL/Transform http://www.w3.org/1999/XSL/Format http://www.w3.org/2005/SMIL21/Language http://www.w3.org/1999/xlink http://www.w3.org/2001/XMLSchema http://www.w3.org/2001/XMLSchema-instance http://www.w3.org/2001/xforms http://www.w3.org/2001/XInclude http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul http://www.w3.org/1999/02/22-rdf-syntax-ns# : highlight