base layout on id instead of name

app/models/page.rb

@@ -15,10 +15,10 @@ class Page < Item
   def setup_default_value
     super
     
-    if self.layout_name
-      self.layout_id = Layout.first(:conditions => {:name => self.layout_name} ).id
+    if self.layout_id
+      self.layout_name = Layout.find(layout_id).name
     end
     
   end
   
-end
+end