diff --git a/accounts/doctype/cost_center/cost_center.js b/accounts/doctype/cost_center/cost_center.js
index 3dde661..e63fa04 100644
--- a/accounts/doctype/cost_center/cost_center.js
+++ b/accounts/doctype/cost_center/cost_center.js
@@ -47,12 +47,6 @@
 	}
 }
 
-//company abbr
-cur_frm.cscript.company_name = function(doc,cdt,cdn){
-	get_server_fields('get_abbr','','',doc,cdt,cdn,1);
-}
-
-
 // Hide/unhide group or ledger
 // -----------------------------------------
 cur_frm.cscript.hide_unhide_group_ledger = function(doc) {
diff --git a/accounts/doctype/cost_center/cost_center.py b/accounts/doctype/cost_center/cost_center.py
index f0fc6fd..d23b086 100644
--- a/accounts/doctype/cost_center/cost_center.py
+++ b/accounts/doctype/cost_center/cost_center.py
@@ -27,15 +27,9 @@
 		self.nsm_parent_field = 'parent_cost_center'
 				
 	def autoname(self):
-		self.doc.name = self.doc.cost_center_name + ' - ' + self.doc.company_abbr		
-			
-	def get_abbr(self):
-		abbr = webnotes.conn.sql("select abbr from tabCompany where company_name=%s", 
-			self.doc.company_name)[0][0] or ''
-		ret = {
-			'company_abbr'	: abbr
-		}
-		return ret
+		company_abbr = webnotes.conn.sql("select abbr from tabCompany where name=%s", 
+			self.doc.company_name)[0][0]
+		self.doc.name = self.doc.cost_center_name + ' - ' + company_abbr		
 		
 	def validate_mandatory(self):
 		if not self.doc.group_or_ledger:
diff --git a/accounts/doctype/cost_center/cost_center.txt b/accounts/doctype/cost_center/cost_center.txt
index 00902d6..5fbc43b 100644
--- a/accounts/doctype/cost_center/cost_center.txt
+++ b/accounts/doctype/cost_center/cost_center.txt
@@ -1,8 +1,8 @@
 [
  {
-  "creation": "2013-01-10 16:34:06", 
+  "creation": "2013-01-23 19:57:17", 
   "docstatus": 0, 
-  "modified": "2013-01-22 14:55:59", 
+  "modified": "2013-01-25 15:04:03", 
   "modified_by": "Administrator", 
   "owner": "Administrator"
  }, 
@@ -90,16 +90,6 @@
  }, 
  {
   "doctype": "DocField", 
-  "fieldname": "company_abbr", 
-  "fieldtype": "Data", 
-  "hidden": 1, 
-  "label": "Company Abbr", 
-  "oldfieldname": "company_abbr", 
-  "oldfieldtype": "Data", 
-  "read_only": 1
- }, 
- {
-  "doctype": "DocField", 
   "fieldname": "cb0", 
   "fieldtype": "Column Break", 
   "width": "50%"
diff --git a/accounts/doctype/gl_control/gl_control.py b/accounts/doctype/gl_control/gl_control.py
index fb7076a..bafe758 100644
--- a/accounts/doctype/gl_control/gl_control.py
+++ b/accounts/doctype/gl_control/gl_control.py
@@ -47,37 +47,23 @@
 		return flt(bal)
 
 	def add_ac(self,arg):
-		arg = eval(arg)
-		ac = Document('Account')
-		for d in arg.keys():
-			ac.fields[d] = arg[d]
-		ac.old_parent = ''
-		ac_obj = get_obj(doc=ac)
-		ac_obj.doc.freeze_account='No'
-		ac_obj.validate()
-		ac_obj.doc.save(1)
-		ac_obj.on_update()
+		ac = webnotes.model_wrapper(eval(arg))
+		ac.doc.doctype = "Account"
+		ac.doc.old_parent = ""
+		ac.doc.freeze_account = "No"
+		ac.insert()
 
-		return ac_obj.doc.name
+		return ac.doc.name
 
 	# Add a new cost center
 	#----------------------
 	def add_cc(self,arg):
-		arg = eval(arg)
-		cc = Document('Cost Center')
-		# map fields
-		for d in arg.keys():
-			cc.fields[d] = arg[d]
-		# map company abbr
-		other_info = webnotes.conn.sql("select company_abbr from `tabCost Center` where name='%s'"%arg['parent_cost_center'])
-		cc.company_abbr = other_info and other_info[0][0] or arg['company_abbr']
+		cc = webnotes.model_wrapper(eval(arg))
+		cc.doc.doctype = "Cost Center"
+		cc.doc.old_parent = ""
+		cc.insert()
 
-		cc_obj = get_obj(doc=cc)
-		cc_obj.validate()
-		cc_obj.doc.save(1)
-		cc_obj.on_update()
-
-		return cc_obj.doc.name
+		return cc.doc.name
 
 
 	# Get field values from the voucher
diff --git a/patches/january_2013/rebuild_tree.py b/patches/january_2013/rebuild_tree.py
new file mode 100644
index 0000000..7552090
--- /dev/null
+++ b/patches/january_2013/rebuild_tree.py
@@ -0,0 +1,8 @@
+from __future__ import unicode_literals
+def execute():
+	from webnotes.utils.nestedset import rebuild_tree
+
+	rebuild_tree("Item Group", "parent_item_group")
+	rebuild_tree("Customer Group", "parent_customer_group")
+	rebuild_tree("Territory", "parent_territory")
+	rebuild_tree("Sales Person", "parent_sales_person")
\ No newline at end of file
diff --git a/patches/patch_list.py b/patches/patch_list.py
index 3b013e4..3ba2048 100644
--- a/patches/patch_list.py
+++ b/patches/patch_list.py
@@ -158,4 +158,5 @@
 	"patches.january_2013.enable_currencies",
 	"patches.january_2013.remove_unwanted_permission",
 	"patches.january_2013.remove_landed_cost_master",
+	"patches.january_2013.rebuild_tree",
 ]
\ No newline at end of file
diff --git a/setup/doctype/customer_group/customer_group.py b/setup/doctype/customer_group/customer_group.py
index a3baaa9..b34d3c6 100644
--- a/setup/doctype/customer_group/customer_group.py
+++ b/setup/doctype/customer_group/customer_group.py
@@ -39,6 +39,7 @@
 
 	def on_update(self):
 		self.validate_name_with_customer()
+		super(DocType, self).on_update()
 		
 	def validate_name_with_customer(self):
 		if webnotes.conn.exists("Customer", self.doc.name):