Hi, all!!! The tree tag has an attribute - urlparam urlparam=string A query string which is included in the expanding and contracting widget links. This attribute is for advanced usage only. I'm having problems with it. The problem is when I do: <dtml-let rubrik_id="''"> <dtml-tree id=rubrik_id branches_expr="sql_list_rubriks(rubrik_id=rubrik_id)" urlparam="rubrik_id=<dtml-var rubrik_id>" single="true" > <b><dtml-var rubrik_name></b> </dtml-tree> </dtml-let> the rendered URL is: http://host:9673/rubrik/show_tree?rubrik_id=<dtml-var%20rubrik_id>&tree-e=eJyLVneEACcD73RbdR0FdUNDM/VYAEOKBWE#116 And I see the <dtml-var%20rubrik_id> unless the value of rubrik_id. What can I do to get the value of parameter, and how to use urlparam with a few parametars? -- Best regards, www.uralfirm.ru Dmitry Matveev mailto:matveev@uralfirm.ru