diff --git a/addons/account/account_bank_statement.py b/addons/account/account_bank_statement.py
index 315a09d3b56..9d6db6bdaca 100644
--- a/addons/account/account_bank_statement.py
+++ b/addons/account/account_bank_statement.py
@@ -29,6 +29,24 @@ import decimal_precision as dp
 
 class account_bank_statement(osv.osv):
 
+    def create(self, cr, uid, vals, context=None):
+        seq = 0
+        for line in vals['line_ids']:
+            seq += 1
+            line[2]['sequence'] = seq
+            vals[seq - 1] = line
+        return super(account_bank_statement, self).create(cr, uid, vals, context=context)
+
+    def write(self, cr, uid, ids, vals, context=None):
+        res = super(account_bank_statement, self).write(cr, uid, ids, vals, context=context)
+        for statement in self.browse(cr, uid, ids, context):
+            seq = 0
+            for line in statement.line_ids:
+                seq += 1
+                if not line.sequence:
+                    self.pool.get('account.bank.statement.line').write(cr, uid, [line.id], {'sequence': seq}, context=context)
+        return res
+
     def button_import_invoice(self, cr, uid, ids, context=None):
         mod_obj = self.pool.get('ir.model.data')
         if context is None:
@@ -141,7 +159,7 @@ class account_bank_statement(osv.osv):
         'balance_end_real': fields.float('Ending Balance', digits_compute=dp.get_precision('Account'),
             states={'confirm':[('readonly', True)]}),
         'balance_end': fields.function(_end_balance, method=True, string='Balance'),
-        'company_id': fields.related('journal_id', 'company_id', type='many2one', relation='res.company', string='Company', store=True),
+        'company_id': fields.related('journal_id', 'company_id', type='many2one', relation='res.company', string='Company', store=True, readonly=True),
         'line_ids': fields.one2many('account.bank.statement.line',
             'statement_id', 'Statement lines',
             states={'confirm':[('readonly', True)]}),
@@ -717,7 +735,6 @@ class account_bank_statement_line(osv.osv):
         'name': lambda self,cr,uid,context={}: self.pool.get('ir.sequence').get(cr, uid, 'account.bank.statement.line'),
         'date': lambda *a: time.strftime('%Y-%m-%d'),
         'type': lambda *a: 'general',
-        'sequence': lambda *a: 10,
     }
 
 account_bank_statement_line()
diff --git a/addons/account/account_cash_statement.py b/addons/account/account_cash_statement.py
index 01d292ce23e..daf2f9ba8f2 100644
--- a/addons/account/account_cash_statement.py
+++ b/addons/account/account_cash_statement.py
@@ -204,7 +204,6 @@ class account_cash_statement(osv.osv):
         return res
 
     _columns = {
-        'company_id':fields.many2one('res.company', 'Company', required=True, states={'draft': [('readonly', False)]}, readonly=True,),
         'journal_id': fields.many2one('account.journal', 'Journal', required=True, states={'draft': [('readonly', False)]}, readonly=True, domain=[('type', '=', 'cash')]),
         'balance_end_real': fields.float('Closing Balance', digits_compute=dp.get_precision('Account'), states={'confirm':[('readonly', True)]}, help="closing balance entered by the cashbox verifier"),
         'state': fields.selection(
@@ -224,22 +223,18 @@ class account_cash_statement(osv.osv):
         'state': lambda *a: 'draft',
         'date': lambda *a:time.strftime("%Y-%m-%d %H:%M:%S"),
         'user_id': lambda self, cr, uid, context=None: uid,
-        'company_id': _get_company,
         'starting_details_ids':_get_cash_open_box_lines,
         'ending_details_ids':_get_default_cash_close_box_lines
      }
 
     def create(self, cr, uid, vals, context=None):
-        company_id = vals and vals.get('company_id',False)
-        if company_id:
-            sql = [
-                ('company_id', '=', vals['company_id']),
+        sql = [
                 ('journal_id', '=', vals['journal_id']),
                 ('state', '=', 'open')
-            ]
-            open_jrnl = self.search(cr, uid, sql)
-            if open_jrnl:
-                raise osv.except_osv('Error', _('You can not have two open register for the same journal'))
+        ]
+        open_jrnl = self.search(cr, uid, sql)
+        if open_jrnl:
+            raise osv.except_osv('Error', _('You can not have two open register for the same journal'))
 
         if self.pool.get('account.journal').browse(cr, uid, vals['journal_id']).type == 'cash':
             lines = end_lines = self._get_cash_close_box_lines(cr, uid, [], context)
diff --git a/addons/account/account_view.xml b/addons/account/account_view.xml
index db6772dc2c0..5e4e7aa2ccb 100644
--- a/addons/account/account_view.xml
+++ b/addons/account/account_view.xml
@@ -524,7 +524,7 @@
                         <page string="Transaction">
                             <field colspan="4" name="line_ids" nolabel="1">
                                 <tree editable="bottom" string="Statement lines">
-                                    <field name="sequence"/>
+                                    <field name="sequence" readonly="1"/>
                                     <field name="date"/>
                                     <field name="ref"/>
                                     <field name="name"/>
@@ -546,7 +546,7 @@
                                     <field name="amount"/>
                                     <field context="{'partner_id':partner_id,'amount':amount,'account_id':account_id,'currency_id': parent.currency,'journal_id':parent.journal_id, 'date':date}" name="reconcile_id"/>
                                     <field name="ref"/>
-                                    <field name="sequence"/>
+                                    <field name="sequence" readonly="0"/>
                                     <separator colspan="4" string="Notes"/>
                                     <field colspan="4" name="note" nolabel="1"/>
                                 </form>