new feature: validation on account negative balance

accounts/doctype/account/account.txt

@@ -1,8 +1,8 @@
 [
  {
-  "creation": "2013-01-19 10:23:33", 
+  "creation": "2013-01-30 12:49:46", 
   "docstatus": 0, 
-  "modified": "2013-01-29 16:27:57", 
+  "modified": "2013-02-05 15:38:32", 
   "modified_by": "Administrator", 
   "owner": "Administrator"
  }, 
@@ -232,6 +232,15 @@
   "options": "[Select]", 
   "permlevel": 0
  }, 
+ {
+  "default": "1", 
+  "depends_on": "eval:doc.group_or_ledger==\"Ledger\"", 
+  "doctype": "DocField", 
+  "fieldname": "allow_negative_balance", 
+  "fieldtype": "Check", 
+  "label": "Allow Negative Balance", 
+  "permlevel": 0
+ }, 
  {
   "doctype": "DocField", 
   "fieldname": "lft", 
@@ -262,13 +271,21 @@
   "print_hide": 1, 
   "read_only": 1
  }, 
+ {
+  "cancel": 1, 
+  "create": 1, 
+  "doctype": "DocPerm", 
+  "permlevel": 0, 
+  "role": "Accounts User", 
+  "write": 1
+ }, 
  {
   "cancel": 0, 
   "create": 0, 
   "doctype": "DocPerm", 
   "permlevel": 0, 
   "role": "Auditor", 
-  "write": 1
+  "write": 0
  }, 
  {
   "cancel": 0, 
@@ -290,9 +307,9 @@
   "cancel": 0, 
   "create": 0, 
   "doctype": "DocPerm", 
-  "permlevel": 0, 
-  "role": "Accounts User", 
-  "write": 1
+  "permlevel": 2, 
+  "role": "Auditor", 
+  "write": 0
  }, 
  {
   "cancel": 1, 
@@ -309,5 +326,13 @@
   "permlevel": 2, 
   "role": "Accounts Manager", 
   "write": 1
+ }, 
+ {
+  "cancel": 0, 
+  "create": 0, 
+  "doctype": "DocPerm", 
+  "permlevel": 2, 
+  "role": "Accounts User", 
+  "write": 0
  }
 ]