status="draft" overrides draft.mode="no"?

Hello,

In my stylesheet for chunked HTML output I have

<xsl:param name="draft.mode" select="'no'"/>

In my document I have

<book lang="de" status="draft">

Nevertheless, a huge background image reading "DRAFT" appears in the 
HTML output. Is this correct behaviour?

According to Bob Stayton's "UIsing the XSLT Stylesheets":

----------------------------------------------
The draft.mode parameter has three possible values:

yes

Turn on draft printing for the whole document.

no

Turn off draft printing for the whole document.
...
----------------------------------------------
Joachim