HTML_NAMESPACE = "http://www.w3.org/1999/xhtml"
XHTML_NAMESPACE = "http://www.w3.org/1999/xhtml"

XML_NAMESPACE = "http://www.w3.org/XML/1998/namespace"
XSD_NAMESPACE = "http://www.w3.org/2001/XMLSchema"
XSI_NAMESPACE = "http://www.w3.org/2001/XMLSchema-Instance"

DC_NAMESPACE = "http://purl.org/dc/elements/1.1/"
DSIG_NAMESPACE = "http://www.w3.org/2000/09/xmldsig#"
