[Zope] img in tree tag?

[Ethan Fremen]

I've got to make this work to use tree for my navigation...
Can someone please tell me why this:

<dtml-tree content branches_expr="objectValues(['Folder', 'DTML
Document'])" sort=order >
<dtml-if expr="meta_type == 'Folder'">
        <span class="menu"><dtml-var title_or_id></span>
<dtml-else>
        <dtml-if expr="id() == 'cnart'"><dtml-var cnartgif></dtml-if>
        <A HREF="<dtml-var "content.absolute_url()">/
        <dtml-var tree-item-url>?
        <dtml-if tree-s>tree-s=<dtml-var tree-s></dtml-if>
        <dtml-if tree-e>&tree-e=<dtml-var tree-e></dtml-if>
        <dtml-if tree-c>&tree-c=<dtml-var tree-c></dtml-if>">
        <dtml-var title_or_id></a>
</dtml-if>
</dtml-tree>

(cnartgif is in the root folder. I've tried putting it in the content
folder.)
results in this:

  File /usr/local/src/Zope-2.0.0-src/lib/python/TreeDisplay/TreeTag.py,
line 154, in render
      (Object: content)
    File
/usr/local/src/Zope-2.0.0-src/lib/python/TreeDisplay/TreeTag.py, line
250, in tpRender
      (Object: ElementWithAttributes)
    File
/usr/local/src/Zope-2.0.0-src/lib/python/TreeDisplay/TreeTag.py, line
491, in tpRenderTABLE
      (Object: ElementWithAttributes)
      (Info: (['AAAAAAAAALc=', []], {'childless_decoration': '', 'id':
'tpId', 'branches_expr': <method Eval.eval of Eval instance at 85a7300>,
'sort': 'order', 'url': 'tpURL', 'name': 'content', '': 'content'},
[['AAAAAAAAALc=', []]], [['AAAAAAAAALc=', []]]))
    File
/usr/local/src/Zope-2.0.0-src/lib/python/TreeDisplay/TreeTag.py, line
408, in tpRenderTABLE
      (Object: cnart)
  AttributeError: __call__
-- 
~mindlace