Hi Ron, Your problem stems from the fact that sequence-item when used in double quotes " is interpreted as a python statement, hence sequence minus item. And because sequence doesn't exist it throws a fit! What you need to do is to use either a <dtml-let item=sequence-item> around your code and then reference item not sequence-item, or you can use _['sequence-item'] which escapes the code and should work. You might also want to check out the property of your sequence-item called meta_type - it gives the metatype of the item you are currently looking at i.e. DTML Document, Folder, etc. hth Laurie -----Original Message----- From: zope-admin@zope.org [mailto:zope-admin@zope.org]On Behalf Of complaw@hal-pc.org Sent: Monday, October 01, 2001 4:23 PM To: zope@zope.org Subject: [Zope] dtml-tree question I've hit the documentation, and looked at several examples, but I haven't found what is needed. The following code is an attempt to have a tree tag show the Folders and DTML Documents. However, I want to put a hyperlink only to the DTML Documents (not the Folders). Note, this code does not work... <P ALIGN="left"><STRONG>Categories and Clauses:</STRONG>   (<A HREF="<dtml-var URL0>?expand_all=1">expand all</A>, <A HREF="<dtml-var URL0>?collapse_all=1">collapse all</A>) <dtml-tree branches_expr="objectValues(['Folder', 'DTML Document'])" sort=title skip_unauthorized> <dtml-if expr="sequence-item == objectValues('Folder')"> <IMG SRC="<dtml-var SCRIPT_NAME>/<dtml-var icon>"> <dtml-var title> <dtml-if expr="sequence-item == objectValues('DTML Document')"> <IMG SRC="<dtml-var SCRIPT_NAME>/<dtml-var icon>"> <A HREF="&absoulte_url;"><dtml-var title></A> </dtml-if> </dtml-tree> </P> Zope is complaining about the user of "sequence". Is there a way to check to see what type of object it is so that the hyperlink is enabled only for certain object types? TIA, Ron _______________________________________________ Zope maillist - Zope@zope.org http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )