diff --git a/addons/account_voucher/account_voucher.py b/addons/account_voucher/account_voucher.py
index 8774b717477..8f34fd8a1fc 100644
--- a/addons/account_voucher/account_voucher.py
+++ b/addons/account_voucher/account_voucher.py
@@ -267,6 +267,7 @@ class account_voucher(osv.osv):
     _order = "date desc, id desc"
 #    _rec_name = 'number'
     _columns = {
+        'active':fields.boolean('Active', help="If the active field is set to False, it will allow you to hide the payment term without removing it."),
         'type':fields.selection([
             ('sale','Sale'),
             ('purchase','Purchase'),
@@ -328,6 +329,7 @@ class account_voucher(osv.osv):
         'is_multi_currency': fields.boolean('Multi Currency Voucher', help='Fields with internal purpose only that depicts if the voucher is a multi currency one or not'),
     }
     _defaults = {
+        'active': lambda *a: False,
         'period_id': _get_period,
         'partner_id': _get_partner,
         'journal_id':_get_journal,
@@ -1504,6 +1506,15 @@ account_voucher_line()
 class account_bank_statement(osv.osv):
     _inherit = 'account.bank.statement'
 
+    def button_confirm_bank(self, cr, uid, ids, context=None):
+        statementLine = self.pool.get('account.bank.statement.line')
+        voucher = self.pool.get('account.voucher')
+        for statement in self.browse(cr, uid, ids, context=context):
+            for line in statement.line_ids:
+                if line.voucher_id:
+                    voucher.write(cr, uid, line.voucher_id.id, {'active':True}, context=context)
+        return super(account_bank_statement, self).button_confirm_bank(cr, uid, ids, context=context)
+
     def button_cancel(self, cr, uid, ids, context=None):
         voucher_obj = self.pool.get('account.voucher')
         for st in self.browse(cr, uid, ids, context=context):
@@ -1534,6 +1545,13 @@ class account_bank_statement(osv.osv):
             return move_line_obj.write(cr, uid, [x.id for x in v.move_ids], {'statement_id': st_line.statement_id.id}, context=context)
         return super(account_bank_statement, self).create_move_from_st_line(cr, uid, st_line.id, company_currency_id, next_number, context=context)
 
+    def unlink(self, cr, uid, ids, context=None):
+        statementLine = self.pool.get('account.bank.statement.line')
+        for statement in self.read(cr, uid, ids, ['line_ids'], context=context):
+            statementLine.unlink(cr, uid, statement['line_ids'], context=context)
+        return super(account_bank_statement, self).unlink(cr, uid, ids, context=context)
+
+
 account_bank_statement()
 
 class account_bank_statement_line(osv.osv):