[Zope] document_title

This probably is very simple.. however, I can't get it working. In my root folder, I have: standard_html_header standard_html_footer index_html index_html has the usual <dtml-var standard_html_header> at top and footer at the bottom. I set the title in index_html to "foo". Now, I want the document title to be the title of index_html. So, I add <title><dtml-var document_title></title> to standard_html_header. But now the title in index_html is set to the title in standard_html_header... I understand why, but how should I solve it? /Magnus Heino