Always open tree view treeview helper option.

app/helpers/typus_treeview_helper.rb

@@ -1,22 +1,22 @@
 module TypusTreeviewHelper
-  def treeview
+  def treeview open = false
     model = @object_name.classify.constantize
     if model.respond_to?(:roots) && method = Typus.treeview[@object_name.to_sym]
       res = ''
       res << javascript_include_tag("jquery.treeview")
       res << stylesheet_link_tag("jquery.treeview")
       res << (content_tag :ul, :id => "treeview" do
         model.roots.map do |root|
-          treeview_draw(root, method)
+          treeview_draw(root, method, open)
         end.join.html_safe
       end)
       res << javascript_tag('$(document).ready(function(){$("#treeview").treeview({persist: "location"});});')
       res.html_safe
     end
   end
 
-  def treeview_draw node, method
-    content_tag :li, :class => "closed" do
+  def treeview_draw node, method, open
+    content_tag :li, :class => open ? nil : "closed" do
       res = ''
       name = method.is_a?(Proc) ? method.call(node) : node.send(method)
       res << content_tag(:span, link_to(name, { :action => "edit",
@@ -27,7 +27,7 @@ def treeview_draw node, method
       if node.children.size > 0
         res << (content_tag :ul do
           node.children.map do |child|
-            treeview_draw(child, method)
+                treeview_draw(child, method, open)
           end.join.html_safe
         end)
       end