public function normalizePrefix( $qname )
	{
		$prefix = strstr( $qname, ":", true );
		if ( isset( $this->namespacePrefixMap[ $prefix ] ) )
		{
			$qname = str_replace( "$prefix:", "{$this->namespacePrefixMap[ $prefix ]}:", $qname );
		}

		return $qname;
	}