Added ability to freeze Customer/Supplier
diff --git a/erpnext/accounts/doctype/gl_entry/gl_entry.py b/erpnext/accounts/doctype/gl_entry/gl_entry.py
index edee122..de5b312 100644
--- a/erpnext/accounts/doctype/gl_entry/gl_entry.py
+++ b/erpnext/accounts/doctype/gl_entry/gl_entry.py
@@ -17,6 +17,7 @@
 		self.validate_posting_date()
 		self.check_pl_account()
 		self.validate_cost_center()
+		self.validate_party()
 
 	def on_update_with_args(self, adv_adj, update_outstanding = 'Yes'):
 		self.validate_account_details(adv_adj)
@@ -88,6 +89,11 @@
 
 		if self.cost_center and _get_cost_center_company() != self.company:
 			frappe.throw(_("Cost Center {0} does not belong to Company {1}").format(self.cost_center, self.company))
+			
+	def validate_party(self):
+		if self.meta.get_field("party_type"):
+			if frappe.db.get_value(self.party_type, self.party, "is_frozen"):
+				frappe.throw("Accounts for {0} {1} is frozen".format(self.party_type, self.party))
 
 def validate_balance_type(account, adv_adj=False):
 	if not adv_adj and account:
diff --git a/erpnext/buying/doctype/supplier/supplier.json b/erpnext/buying/doctype/supplier/supplier.json
index a1a38d5..0ea49a0 100644
--- a/erpnext/buying/doctype/supplier/supplier.json
+++ b/erpnext/buying/doctype/supplier/supplier.json
@@ -55,6 +55,13 @@
    "reqd": 1
   }, 
   {
+   "fieldname": "is_frozen", 
+   "fieldtype": "Check", 
+   "label": "Is Frozen ?", 
+   "permlevel": 0, 
+   "precision": ""
+  }, 
+  {
    "depends_on": "eval:!doc.__islocal", 
    "fieldname": "address_contacts", 
    "fieldtype": "Section Break", 
@@ -172,7 +179,7 @@
  ], 
  "icon": "icon-user", 
  "idx": 1, 
- "modified": "2015-07-13 05:28:29.121285", 
+ "modified": "2015-07-17 02:01:36.727437", 
  "modified_by": "Administrator", 
  "module": "Buying", 
  "name": "Supplier", 
diff --git a/erpnext/controllers/accounts_controller.py b/erpnext/controllers/accounts_controller.py
index 7610042..c893a0a 100644
--- a/erpnext/controllers/accounts_controller.py
+++ b/erpnext/controllers/accounts_controller.py
@@ -16,6 +16,7 @@
 		if self.get("_action") and self._action != "update_after_submit":
 			self.set_missing_values(for_validate=True)
 		self.validate_date_with_fiscal_year()
+		
 		if self.meta.get_field("currency"):
 			self.calculate_taxes_and_totals()
 			if not self.meta.get_field("is_return") or not self.is_return:
@@ -32,6 +33,8 @@
 
 		if self.meta.get_field("taxes_and_charges"):
 			self.validate_enabled_taxes_and_charges()
+			
+		self.validate_party()
 
 	def on_submit(self):
 		if self.meta.get_field("is_recurring"):
@@ -340,6 +343,20 @@
 
 		return self._abbr
 
+	def validate_party(self):
+		party = None
+		if self.meta.get_field("customer"):
+			party_type = 'customer'
+			party = self.customer
+
+		elif self.meta.get_field("suppier"):
+			party_type = 'supplier'
+			party = self.supplier
+			
+		if party:
+			if frappe.db.get_value(party_type, party, "is_frozen"):
+				frappe.throw("Accounts for {0} {1} is frozen".format(party_type, party))
+
 @frappe.whitelist()
 def get_tax_rate(account_head):
 	return frappe.db.get_value("Account", account_head, "tax_rate")
diff --git a/erpnext/selling/doctype/customer/customer.json b/erpnext/selling/doctype/customer/customer.json
index cced319..cebfc29 100644
--- a/erpnext/selling/doctype/customer/customer.json
+++ b/erpnext/selling/doctype/customer/customer.json
@@ -102,6 +102,13 @@
    "reqd": 1
   }, 
   {
+   "fieldname": "is_frozen", 
+   "fieldtype": "Check", 
+   "label": "Is Frozen ?", 
+   "permlevel": 0, 
+   "precision": ""
+  }, 
+  {
    "depends_on": "eval:!doc.__islocal", 
    "fieldname": "address_contacts", 
    "fieldtype": "Section Break", 
@@ -278,7 +285,7 @@
  ], 
  "icon": "icon-user", 
  "idx": 1, 
- "modified": "2015-07-13 05:28:25.753684", 
+ "modified": "2015-07-16 09:07:11.565841", 
  "modified_by": "Administrator", 
  "module": "Selling", 
  "name": "Customer",