diff --git a/addons/hr_payroll/hr_payroll.py b/addons/hr_payroll/hr_payroll.py
index 9b390691c33..55cadd1efc9 100644
--- a/addons/hr_payroll/hr_payroll.py
+++ b/addons/hr_payroll/hr_payroll.py
@@ -463,7 +463,7 @@ class hr_payslip(osv.osv):
             if res:
                 result[record.id] = [x[0] for x in res]
         return result
-    
+
     def _get_parent_structure(self, cr, uid, struct_id, context=None):
         if not struct_id:
             return []
@@ -498,7 +498,7 @@ class hr_payslip(osv.osv):
                            rule.append(r.id)
                     result[record.id] = rule
         return result
-   
+
     def _appears_on_payslip_rule(self, cr, uid, ids, field_names, arg=None, context=None):
         struct_obj = self.pool.get('hr.payroll.structure')
         result = {}
@@ -523,7 +523,7 @@ class hr_payslip(osv.osv):
                                rule.append(r.id)
                     result[record.id] = rule
         return result
-    
+
     def _compute(self, cr, uid, id, value, context=None):
         rule_obj = self.pool.get('hr.salary.rule')
         contrib = rule_obj.browse(cr, uid, id, context=context)
@@ -658,18 +658,6 @@ class hr_payslip(osv.osv):
         return True
 
     def get_contract(self, cr, uid, employee, date, context=None):
-#        sql_req= '''
-#            SELECT c.id as id, c.wage as wage, struct_id as function
-#            FROM hr_contract c
-#              LEFT JOIN hr_employee emp on (c.employee_id=emp.id)
-#              LEFT JOIN hr_contract_wage_type cwt on (cwt.id = c.wage_type_id)
-#              LEFT JOIN hr_contract_wage_type_period p on (cwt.period_id = p.id)   #PSI@ improve as we need period but wage_type_id field removed
-#            WHERE
-#              (emp.id=%s) AND
-#              (date_start <= %s) AND
-#              (date_end IS NULL OR date_end >= %s)
-#            LIMIT 1
-#            '''
         sql_req= '''
             SELECT c.id as id, c.wage as wage, struct_id as function
             FROM hr_contract c
@@ -678,11 +666,10 @@ class hr_payslip(osv.osv):
               (emp.id=%s) AND
               (date_start <= %s) AND
               (date_end IS NULL OR date_end >= %s)
-            LIMIT 1
             '''
         cr.execute(sql_req, (employee.id, date, date))
-        contract = cr.dictfetchone()
-        return contract and contract or {}
+        contracts = cr.dictfetchall()
+        return contracts and contracts or {}
 
     def _get_leaves(self, cr, user, ddate, employee, context=None):
         """
@@ -715,145 +702,159 @@ class hr_payslip(osv.osv):
         holiday_pool = self.pool.get('hr.holidays')
         sequence_obj = self.pool.get('ir.sequence')
         salary_rule_pool = self.pool.get('hr.salary.rule')
+        contract_obj = self.pool.get('hr.contract')
         resource_attendance_pool = self.pool.get('resource.calendar.attendance')
         if context is None:
             context = {}
         date = self.read(cr, uid, ids, ['date'], context=context)[0]['date']
 
         for slip in self.browse(cr, uid, ids, context=context):
-            old_slip_ids = slip_line_pool.search(cr, uid, [('slip_id','=',slip.id)], context=context)
+            old_slip_ids = slip_line_pool.search(cr, uid, [('slip_id', '=', slip.id)], context=context)
             slip_line_pool.unlink(cr, uid, old_slip_ids, context=context)
-
             update = {}
             ttyme = datetime.fromtimestamp(time.mktime(time.strptime(slip.date, "%Y-%m-%d")))
-            contracts = self.get_contract(cr, uid, slip.employee_id, date, context)
-            if contracts.get('id', False) == False:
+            contract_id = slip.contract_id.id
+            if not contract_id:
+                update.update({'struct_id': False})
+                contracts = self.get_contract(cr, uid, slip.employee_id, date, context=context)
+            else:
+                contracts = [contract_obj.read(cr, uid, contract_id, ['wage', 'struct_id', 'id'], context=context)]
                 update.update({
-                    'basic': 0.0,
+                    'struct_id': contracts[0].get('struct_id', False),
+                    'contract_id': contract_id
+                })
+            if not contracts:
+                update.update({
+                    'basic_amount': 0.0,
                     'basic_before_leaves': 0.0,
                     'name': 'Salary Slip of %s for %s' % (slip.employee_id.name, tools.ustr(ttyme.strftime('%B-%Y'))),
                     'state': 'draft',
                     'contract_id': False,
+                    'struct_id': False,
                     'company_id': slip.employee_id.company_id.id
                 })
                 self.write(cr, uid, [slip.id], update, context=context)
                 continue
 
-            contract = slip.employee_id.contract_id
-            function = contract.struct_id.id
-            sal_structure = []
-            if function:
-                sal_structure = self._get_parent_structure(cr, uid, [function], context=context)
-            lines = []
-            rules = []
-            for struct in sal_structure:
-                lines = func_pool.browse(cr, uid, struct, context=context).rule_ids
-                for rl in lines:
-                    if rl.child_ids:
-                        for r in rl.child_ids:
-                            lines.append(r)
-                    rules.append(rl)
-            ad = []
-            total = 0.0
-            obj = {'basic': contract.wage}
-            for line in rules:
-                cd = line.code.lower()
-                obj[cd] = line.amount or 0.0
-
-            for line in rules:
-                if line.category_id.code in ad:
+            for contract in contracts:
+                if contract.get('id', False) == False:
                     continue
-                ad.append(line.category_id.code)
-                cd = line.category_id.code.lower()
-                calculate = False
-                try:
-                    exp = line.conditions
-                    calculate = eval(exp, obj)
-                except Exception, e:
-                    raise osv.except_osv(_('Variable Error !'), _('Variable Error: %s ') % (e))
+                contract_id = contract.get('id')
+                contract = self.pool.get('hr.contract').browse(cr, uid, contract_id, context=context)
+                function = contract.struct_id.id
+                sal_structure = []
+                if function:
+                    sal_structure = self._get_parent_structure(cr, uid, [function], context=context)
+                    lines = []
+                    rules = []
+                for struct in sal_structure:
+                    lines = func_pool.browse(cr, uid, struct, context=context).rule_ids
+                    for rl in lines:
+                        if rl.child_ids:
+                            for r in rl.child_ids:
+                                lines.append(r)
+                        rules.append(rl)
+                ad = []
+                total = 0.0
+                obj = {'basic': contract.wage}
+                for line in rules:
+                    cd = line.code.lower()
+                    obj[cd] = line.amount or 0.0
 
-                if not calculate:
-                    continue
-
-                value = 0.0
-                base = line.computational_expression
-                try:
-                    amt = eval(base, obj)
-                except Exception, e:
-                    raise osv.except_osv(_('Variable Error !'), _('Variable Error: %s ') % (e))
-                if line.amount_type == 'per':
+                for line in rules:
+                    if line.category_id.code in ad:
+                        continue
+                    ad.append(line.category_id.code)
+                    cd = line.category_id.code.lower()
+                    calculate = False
                     try:
-                        if line.child_depend == False:
-                            if line.parent_rule_id:
-                                for rul in [line.parent_rule_id]:
-                                    val = rul.amount * amt
-                                    amt = val
-                            value = line.amount * amt
-                            if line.condition_range_min or line.condition_range_max:
-                                if ((value < line.condition_range_min) or (value > line.condition_range_max)):
-                                    value = 0.0
-                                else:
-                                    value = value
-                            else:
-                                value = value
+                        exp = line.conditions
+                        calculate = eval(exp, obj)
                     except Exception, e:
                         raise osv.except_osv(_('Variable Error !'), _('Variable Error: %s ') % (e))
 
-                elif line.amount_type == 'fix':
-                    if line.child_depend == False:
-                        if line.parent_rule_id:
-                            for rul in [line.parent_rule_id]:
-                                value = value
-                        if line.condition_range_min or line.condition_range_max:
-                            if ((line.amount < line.condition_range_min) or (line.amount > line.condition_range_max)):
-                                value = value
+                    if not calculate:
+                        continue
+
+                    value = 0.0
+                    base = line.computational_expression
+                    try:
+                        amt = eval(base, obj)
+                    except Exception, e:
+                        raise osv.except_osv(_('Variable Error !'), _('Variable Error: %s ') % (e))
+                    if line.amount_type == 'per':
+                        try:
+                            if line.child_depend == False:
+                                if line.parent_rule_id:
+                                    for rul in [line.parent_rule_id]:
+                                        val = rul.amount * amt
+                                        amt = val
+                                value = line.amount * amt
+                                if line.condition_range_min or line.condition_range_max:
+                                    if ((value < line.condition_range_min) or (value > line.condition_range_max)):
+                                        value = 0.0
+                                    else:
+                                        value = value
+                                else:
+                                    value = value
+                        except Exception, e:
+                            raise osv.except_osv(_('Variable Error !'), _('Variable Error: %s ') % (e))
+
+                    elif line.amount_type == 'fix':
+                        if line.child_depend == False:
+                            if line.parent_rule_id:
+                                for rul in [line.parent_rule_id]:
+                                    value = value
+                            if line.condition_range_min or line.condition_range_max:
+                                if ((line.amount < line.condition_range_min) or (line.amount > line.condition_range_max)):
+                                    value = value
+                                else:
+                                    value = line.amount
                             else:
                                 value = line.amount
-                        else:
-                            value = line.amount
-                elif line.amount_type=='code':
-                    localdict = {'basic':amt, 'employee':slip.employee_id, 'contract':contract}
-                    exec line.python_compute in localdict
-                    value = localdict['result']
-                total += value
-                vals = {
-                    'slip_id': slip.id,
-                    'category_id': line.category_id.id,
-                    'name': line.name,
-                    'sequence': line.sequence,
-                    'type': line.type.id,
-                    'code': line.code,
-                    'amount_type': line.amount_type,
-                    'amount': line.amount,
-                    'total': value,
-                    'employee_id': slip.employee_id.id,
-                    'base': line.computational_expression
-                }
-                if line.appears_on_payslip:
-                    if line.parent_rule_id:
-                        for l in salary_rule_pool.browse(cr, uid, [line.parent_rule_id.id], context=context):
-                            slip_line_pool.create(cr, uid, vals, {})
-                    else:
-                        if line.condition_range_min or line.condition_range_max:
-                            if not ((value < line.condition_range_min) or (value > line.condition_range_max)):
+                    elif line.amount_type=='code':
+                        localdict = {'basic':amt, 'employee':slip.employee_id, 'contract':contract}
+                        exec line.python_compute in localdict
+                        value = localdict['result']
+                    total += value
+                    vals = {
+                        'slip_id': slip.id,
+                        'category_id': line.category_id.id,
+                        'name': line.name,
+                        'sequence': line.sequence,
+                        'type': line.type.id,
+                        'code': line.code,
+                        'amount_type': line.amount_type,
+                        'amount': line.amount,
+                        'total': value,
+                        'employee_id': slip.employee_id.id,
+                        'base': line.computational_expression
+                    }
+                    if line.appears_on_payslip:
+                        if line.parent_rule_id:
+                            for l in salary_rule_pool.browse(cr, uid, [line.parent_rule_id.id], context=context):
                                 slip_line_pool.create(cr, uid, vals, {})
                         else:
-                            slip_line_pool.create(cr, uid, vals, {})
+                            if line.condition_range_min or line.condition_range_max:
+                                if not ((value < line.condition_range_min) or (value > line.condition_range_max)):
+                                    slip_line_pool.create(cr, uid, vals, {})
+                            else:
+                                slip_line_pool.create(cr, uid, vals, {})
 
-            basic = contract.wage
-            number = sequence_obj.get(cr, uid, 'salary.slip')
-            update.update({
-                'struct_id': function,
-                'number': number,
-                'basic_amount': basic,
-                'basic_before_leaves': basic,
-                'total_pay': basic + total,
-                'name': 'Salary Slip of %s for %s' % (slip.employee_id.name, tools.ustr(ttyme.strftime('%B-%Y'))),
-                'state':'draft',
-                'contract_id': contract.id,
-                'company_id': slip.employee_id.company_id.id
-            })
-            self.write(cr, uid, [slip.id], update, context=context)
+                basic = contract.wage
+                number = sequence_obj.get(cr, uid, 'salary.slip')
+                update.update({
+                    'struct_id': function,
+                    'number': number,
+                    'basic_amount': basic,
+                    'basic_before_leaves': basic,
+                    'total_pay': basic + total,
+                    'name': 'Salary Slip of %s for %s' % (slip.employee_id.name, tools.ustr(ttyme.strftime('%B-%Y'))),
+                    'state':'draft',
+                    'contract_id': contract.id,
+                    'company_id': slip.employee_id.company_id.id
+                })
+                self.write(cr, uid, [slip.id], update, context=context)
 
         for slip in self.browse(cr, uid, ids, context=context):
             if not slip.contract_id:
@@ -864,7 +865,7 @@ class hr_payslip(osv.osv):
             dates = prev_bounds(slip.date)
             calendar_id = slip.employee_id.contract_id.working_hours.id
             if not calendar_id:
-                raise osv.except_osv(_('Error !'), _("Please define working schedule on %s's contract") % (employee_id.name))
+                raise osv.except_osv(_('Error !'), _("Please define working schedule on %s's contract") % (slip.employee_id.name))
             week_days = {"0": "mon", "1": "tue", "2": "wed","3": "thu", "4": "fri", "5": "sat", "6": "sun"}
             wk_days = {}
             week_ids = resource_attendance_pool.search(cr, uid, [('calendar_id', '=', calendar_id)], context=context)
@@ -919,7 +920,7 @@ class hr_payslip(osv.osv):
                 elif salary_rule.amount_type == 'fix':
                     value = salary_rule.amount * days
                 elif salary_rule.amount_type=='code':
-                    localdict = {'basic':amt, 'employee':slip.employee_id, 'contract':contract}
+                    localdict = {'basic': amt, 'employee': slip.employee_id, 'contract': contract}
                     exec salary_rule.python_compute in localdict
                     value = localdict['result'] * days
                 res['amount'] = salary_rule.amount
@@ -949,6 +950,7 @@ class hr_payslip(osv.osv):
         holiday_pool = self.pool.get('hr.holidays')
         sequence_obj = self.pool.get('ir.sequence')
         empolyee_obj = self.pool.get('hr.employee')
+        contract_obj = self.pool.get('hr.contract')
         resource_attendance_pool = self.pool.get('resource.calendar.attendance')
 
         if context is None:
@@ -965,144 +967,155 @@ class hr_payslip(osv.osv):
         employee_id = empolyee_obj.browse(cr, uid, employee_id, context=context)
         ttyme = datetime.fromtimestamp(time.mktime(time.strptime(ddate, "%Y-%m-%d")))
         if not contract_id:
+            update['value'].update({'struct_id': False})
             contracts = self.get_contract(cr, uid, employee_id, ddate, context=context)
-            if not contracts.get('id', False):
-                update['value'].update({
-                    'basic_amount': 0.0,
-                    'basic_before_leaves': 0.0,
-                    'name':'Salary Slip of %s for %s' % (employee_id.name, tools.ustr(ttyme.strftime('%B-%Y'))),
-                    'contract_id':False,
-                    'company_id':employee_id.company_id.id
-                })
-                return update
-            contract = employee_id.contract_id
         else:
-            contract = self.pool.get('hr.contract').browse(cr, uid, contract_id, context=context)
-
-        function = contract.struct_id.id
-        sal_structure = []
-        if function:
-            sal_structure = self._get_parent_structure(cr, uid, [function], context=context)
-
-        lines = []
-        rules = []
-        for struct in sal_structure:
-            lines = func_pool.browse(cr, uid, struct, context=context).rule_ids
-            for rl in lines:
-                if rl.child_ids:
-                    for r in rl.child_ids:
-                        lines.append(r)
-                rules.append(rl)
-        ad = []
-        total = 0.0
-        obj = {'basic': contract.wage}
-        for line in rules:
-            cd = line.code.lower()
-            obj[cd] = line.amount or 0.0
-
-        for line in rules:
-            if line.category_id.code in ad:
+            contracts = [contract_obj.read(cr, uid, contract_id, ['wage', 'struct_id', 'id'], context=context)]
+            update['value'].update({
+                'struct_id': contracts[0].get('struct_id', False),
+                'contract_id': contract_id
+            })
+        if not contracts:
+            update['value'].update({
+                'basic_amount': 0.0,
+                'basic_before_leaves': 0.0,
+                'name':'Salary Slip of %s for %s' % (employee_id.name, tools.ustr(ttyme.strftime('%B-%Y'))),
+                'contract_id': False,
+                'struct_id': False,
+                'company_id':employee_id.company_id.id
+            })
+            return update
+        final_total = 0.0
+        all_basic = 0.0
+        for contract in contracts:
+            if contract.get('id', False) == False:
                 continue
-            ad.append(line.category_id.code)
-            cd = line.category_id.code.lower()
-            calculate = False
-            try:
-                exp = line.conditions
-                calculate = eval(exp, obj)
-            except Exception, e:
-                raise osv.except_osv(_('Variable Error !'), _('Variable Error: %s ') % (e))
+            contract_id = contract.get('id')
+            contract_id = self.pool.get('hr.contract').browse(cr, uid, contract_id, context=context)
+            function = contract_id.struct_id.id
+            sal_structure = []
+            if function:
+                sal_structure = self._get_parent_structure(cr, uid, [function], context=context)
+            lines = []
+            rules = []
+            for struct in sal_structure:
+                lines = func_pool.browse(cr, uid, struct, context=context).rule_ids
+                for rl in lines:
+                    if rl.child_ids:
+                        for r in rl.child_ids:
+                            lines.append(r)
+                    rules.append(rl)
+            ad = []
+            total = 0.0
+            obj = {'basic': contract_id.wage}
+            for line in rules:
+                cd = line.code.lower()
+                obj[cd] = line.amount or 0.0
 
-            if not calculate:
-                continue
-
-            value = 0.0
-            base = line.computational_expression
-            try:
-                amt = eval(base, obj)
-            except Exception, e:
-                raise osv.except_osv(_('Variable Error !'), _('Variable Error: %s ') % (e))
-            if line.amount_type == 'per':
+            for line in rules:
+                if line.category_id.code in ad:
+                    continue
+                ad.append(line.category_id.code)
+                cd = line.category_id.code.lower()
+                calculate = False
                 try:
-                    if line.child_depend == False:
-                        if line.parent_rule_id:
-                            for rul in [line.parent_rule_id]:
-                                val = rul.amount * amt
-                                amt = val
-                        value = line.amount * amt
-                        if line.condition_select == 'range':
-                            if line.condition_range_min or line.condition_range_max:
-                                if ((value < line.condition_range_min) or (value > line.condition_range_max)):
-                                    value = 0.0
-                                else:
-                                    value = value
-                        else:
-                            value = value
+                    exp = line.conditions
+                    calculate = eval(exp, obj)
                 except Exception, e:
                     raise osv.except_osv(_('Variable Error !'), _('Variable Error: %s ') % (e))
 
-            elif line.amount_type == 'fix':
-                if line.child_depend == False:
-                    if line.parent_rule_id:
-                        for rul in [line.parent_rule_id]:
-                            value = value
-                    if line.condition_select == 'range':
-                        if line.condition_range_min or line.condition_range_max:
-                            if ((line.amount < line.condition_range_min) or (line.amount > line.condition_range_max)):
-                                value = value
-                            else:
-                                value = line.amount
-                    else:
-                        value = line.amount
+                if not calculate:
+                    continue
 
-            elif line.amount_type=='code':
-                localdict = {'basic':amt, 'employee':employee_id, 'contract':contract}
-                exec line.python_compute in localdict
-                val = localdict['result']
-                if line.child_depend == False:
-                    if line.parent_rule_id:
-                        for rul in [line.parent_rule_id]:
-                            value = val
-                    if line.condition_select == 'range':
-                        if line.condition_range_min or line.condition_range_max:
-                            if ((line.amount < line.condition_range_min) or (line.amount > line.condition_range_max)):
-                                value = value
+                value = 0.0
+                base = line.computational_expression
+                try:
+                    amt = eval(base, obj)
+                except Exception, e:
+                    raise osv.except_osv(_('Variable Error !'), _('Variable Error: %s ') % (e))
+                if line.amount_type == 'per':
+                    try:
+                        if line.child_depend == False:
+                            if line.parent_rule_id:
+                                for rul in [line.parent_rule_id]:
+                                    val = rul.amount * amt
+                                    amt = val
+                            value = line.amount * amt
+                            if line.condition_select == 'range':
+                                if line.condition_range_min or line.condition_range_max:
+                                    if ((value < line.condition_range_min) or (value > line.condition_range_max)):
+                                        value = 0.0
+                                    else:
+                                        value = value
                             else:
+                                value = value
+                    except Exception, e:
+                        raise osv.except_osv(_('Variable Error !'), _('Variable Error: %s ') % (e))
+
+                elif line.amount_type == 'fix':
+                    if line.child_depend == False:
+                        if line.parent_rule_id:
+                            for rul in [line.parent_rule_id]:
+                                value = value
+                        if line.condition_select == 'range':
+                            if line.condition_range_min or line.condition_range_max:
+                                if ((line.amount < line.condition_range_min) or (line.amount > line.condition_range_max)):
+                                    value = value
+                                else:
+                                    value = line.amount
+                        else:
+                            value = line.amount
+
+                elif line.amount_type=='code':
+                    localdict = {'basic':amt, 'employee':employee_id, 'contract':contract}
+                    exec line.python_compute in localdict
+                    val = localdict['result']
+                    if line.child_depend == False:
+                        if line.parent_rule_id:
+                            for rul in [line.parent_rule_id]:
                                 value = val
+                        if line.condition_select == 'range':
+                            if line.condition_range_min or line.condition_range_max:
+                                if ((line.amount < line.condition_range_min) or (line.amount > line.condition_range_max)):
+                                    value = value
+                                else:
+                                    value = val
+                        else:
+                            value = val
+                total += value
+                vals = {
+                    'category_id': line.category_id.id,
+                    'name': line.name,
+                    'sequence': line.sequence,
+                    'type': line.type.id,
+                    'code': line.code,
+                    'amount_type': line.amount_type,
+                    'amount': line.amount,
+                    'total': value,
+                    'employee_id': employee_id.id,
+                    'base': line.computational_expression
+                }
+                if line.appears_on_payslip:
+                    if line.condition_range_min or line.condition_range_max:
+                        if not ((value < line.condition_range_min) or (value > line.condition_range_max)):
+                            update['value']['line_ids'].append(vals)
                     else:
-                        value = val
-
-            total += value
-            vals = {
-                'category_id': line.category_id.id,
-                'name': line.name,
-                'sequence': line.sequence,
-                'type': line.type.id,
-                'code': line.code,
-                'amount_type': line.amount_type,
-                'amount': line.amount,
-                'total': value,
-                'employee_id': employee_id.id,
-                'base': line.computational_expression
-            }
-            if line.appears_on_payslip:
-                if line.condition_range_min or line.condition_range_max:
-                    if not ((value < line.condition_range_min) or (value > line.condition_range_max)):
                         update['value']['line_ids'].append(vals)
-                else:
-                    update['value']['line_ids'].append(vals)
 
-        basic = contract.wage
-        number = sequence_obj.get(cr, uid, 'salary.slip')
-        update['value'].update({
-#            'struct_id': function,
-            'number': number,
-            'basic_amount': basic,
-            'basic_before_leaves': basic,
-            'total_pay': basic + total,
-            'name': 'Salary Slip of %s for %s' % (employee_id.name, tools.ustr(ttyme.strftime('%B-%Y'))),
-            'contract_id': contract.id,
-            'company_id': employee_id.company_id.id
-        })
+                basic = contract_id.wage
+                all_basic += basic
+                final_total += basic + total
+            number = sequence_obj.get(cr, uid, 'salary.slip')
+            update['value'].update({
+    #            'struct_id': function,
+                'number': number,
+                'basic_amount': all_basic,
+                'basic_before_leaves': basic,
+                'total_pay': final_total,
+                'name': 'Salary Slip of %s for %s' % (employee_id.name, tools.ustr(ttyme.strftime('%B-%Y'))),
+    #            'contract_id': contract_id.id,
+                'company_id': employee_id.company_id.id
+            })
 
         basic_before_leaves = update['value']['basic_amount']
         total_before_leaves = update['value']['total_pay']
@@ -1124,7 +1137,7 @@ class hr_payslip(osv.osv):
             off_days += get_days(1, dates[1].day, dates[1].month, dates[1].year, days_arr[dy])
         total_off = off_days
         working_day = dates[1].day - total_off
-        perday = working_day and basic / working_day or 0.0
+#        perday = working_day and basic / working_day or 0.0
         total = 0.0
         leave = 0.0
         leave_ids = self._get_leaves(cr, uid, ddate, employee_id, context)
@@ -1198,7 +1211,7 @@ class hr_payslip(osv.osv):
                             value = salary_rule.amount * days
 
                 elif salary_rule.amount_type=='code':
-                    localdict = {'basic':amt, 'employee':employee_id, 'contract':contract}
+                    localdict = {'basic':amt, 'employee':employee_id, 'contract':contract_id}
                     exec salary_rule.python_compute in localdict
                     val = localdict['result'] * days
                     if salary_rule.child_depend == False:
diff --git a/addons/hr_payroll/hr_payroll_view.xml b/addons/hr_payroll/hr_payroll_view.xml
index 3926c9bb19d..65dbdc03049 100644
--- a/addons/hr_payroll/hr_payroll_view.xml
+++ b/addons/hr_payroll/hr_payroll_view.xml
@@ -212,9 +212,8 @@
                         <field name="name"/>
                         <field name="number"/>
                         <field name="date"/>
-                        <field name="contract_id" groups="base.group_extended" domain="[('employee_id','=',employee_id)]" on_change="onchange_employee_id(contract_id)"/>
+                        <field name="contract_id" groups="base.group_extended" domain="[('employee_id','=',employee_id)]" on_change="onchange_employee_id(date, employee_id, contract_id)"/>
                         <field name="struct_id" groups="base.group_extended"/>
-
                     </group>
                     <notebook colspan="4">
                         <page string="Salary Computation">
@@ -283,7 +282,7 @@
                             <separator colspan="4" string="Description"/>
                             <field name="note" colspan="4" nolabel="1"/>
                         </page>
-			       
+
                         <page string="Applied Salary Rules">
                             <field name="applied_salary_rule" nolabel="1" />
                         </page>
@@ -296,7 +295,7 @@
                     <group col="10" colspan="4">
                         <field name="state"/>
                         <button string="Cancel" icon="terp-dialog-close" name="cancel_sheet" states="draft,hr_check,confirm"/>
-                        <!-- <button string="Compute Sheet" icon="terp-stock_format-scientific" name="compute_sheet" states="new"/> -->
+                        <!-- <button string="Compute Sheet" icon="terp-stock_format-scientific" name="compute_sheet" states="new"/>-->
                         <button string="Recompute Sheet" icon="terp-stock_format-scientific" name="compute_sheet" type="object" states="draft"/>
                         <button string="Verify Sheet" icon="terp-camera_test" name="verify_sheet" states="draft"/>
                         <button string="Approve Sheet" icon="terp-camera_test" name="final_verify_sheet" states="hr_check"/>