diff --git a/preferences.py b/preferences.py
index 2bc2569..224da9e 100644
--- a/preferences.py
+++ b/preferences.py
@@ -8,12 +8,14 @@ import os
 import pygtk
 import gtk
 import gtk.glade
+import gobject
 
 from config import Config
 import dialogs
 
 class Preferences:
     def __init__(self):
+        self.category_dict = {'Disk options':'disk_group','General':'general_group','Scan options':'scan_group'}
         self.conf = Config()
         self.conf.load()
         
@@ -21,15 +23,14 @@ class Preferences:
         
         self.glade = gtk.glade.XML(self.gladefile,"prefs")
         dic = {
-            "on_button_ejt_clicked"  :self.show_filechooser,
-            "on_button_mnt_clicked"  :self.show_dirchooser,
+            "on_button_ejt_clicked"             :self.show_filechooser,
+            "on_button_mnt_clicked"             :self.show_dirchooser,
+            "on_category_tree_cursor_changed"   :self.activate_pan,
         }
         self.glade.signal_autoconnect(dic)
         
         self.pref = self.glade.get_widget("prefs")
         
-        self.tree = self.glade.get_widget("category")
-        
         self.desc = self.glade.get_widget("desc")
         
         self.cd = self.glade.get_widget("mnt_entry")
@@ -39,6 +40,23 @@ class Preferences:
         self.eject.set_text(self.conf.confd['eject'])
         self.pref.show()
         
+        self.tree = self.glade.get_widget("category_tree")
+        self.model = gtk.ListStore(gobject.TYPE_STRING)
+        self.model.clear()
+        self.tree.set_model(self.model)
+        self.tree.set_headers_visible(False)
+        self.tree.show()
+        
+        for i in self.category_dict:
+            print i,self.category_dict[i]
+            myiter = self.model.insert_after(None,None)
+            self.model.set_value(myiter,0,i)
+
+        renderer=gtk.CellRendererText()
+        column=gtk.TreeViewColumn("Name",renderer, text=0)
+        column.set_resizable(True)
+        self.tree.append_column(column)
+                                
     def show_filechooser(self,widget):
         """dialog for choose eject"""
         dialog = gtk.FileChooserDialog(
@@ -80,6 +98,29 @@ class Preferences:
         response = dialog.run()
         if response == gtk.RESPONSE_OK:
             self.cd.set_text(dialog.get_filename())
-        
         dialog.destroy()
         
+    def activate_pan(self,treeview):
+        model = treeview.get_model()
+        selected = model.get_value(model.get_iter(treeview.get_cursor()[0]),0)
+        iterator = treeview.get_model().get_iter_first();
+        while iterator != None:
+            if model.get_value(iterator,0) == selected:
+                try:
+                    self.glade.get_widget(self.category_dict[model.get_value(iterator,0)]).show()
+                except:
+                    pass
+            else:
+                try:
+                    self.glade.get_widget(self.category_dict[model.get_value(iterator,0)]).hide()
+                except:
+                    pass
+            iterator = treeview.get_model().iter_next(iterator);
+        
+if __name__ == "__main__":
+    try:
+        app=Preferences()
+        #app.run()
+        gtk.main()
+    except KeyboardInterrupt:
+        gtk.main_quit