u'xl': u'http://www.w3.org/1999/xlink',
u'html' : u'http://www.w3.org/1999/xhtml'}
+DB_NS="http://docbook.org/ns/docbook"
+DB = "{%s}" % DB_NS
+XI_NS="http://www.w3.org/2001/XInclude"
+XI = "{%s}" % XI_NS
+XLINK_NS="http://www.w3.org/1999/xlink"
+XLINK = "{%s}" % XLINK_NS
+HTML_NS="http://www.w3.org/1999/xhtml"
+HTML = "{%s}" % HTML_NS
+NSMAP = {None : DB_NS,
+ 'xlink' : XLINK_NS}
+