[Zope] Trying to change the root of the tree using the name attribute of the dtml-tree tag

Hello. I am trying to change the root of the tree using a variable which is initialized using the REQUEST.set method. However, the root does not change and remains the default which in this case is the root folder. I have provided my code below. This code resides in a DTML method which is called when a form in a DTML document is submitted. Any help would be greatly appreciated. -Asad <dtml-call "REQUEST.set('testFolder', REQUEST.form['folderName'])"> <dtml-tree branches_expr="objectValues('Folder')" name="testFolder" skip_unauthorized> <dtml-var getId> </dtml-tree> __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com