Declare @Id Int                               
Select @Id = Id From sysobjects Where Name = 'Havaleh'
if not Exists(SELECT * FROM syscolumns WHERE id = @Id and Name = 'JetId')
  Alter Table Havaleh Add JetId INT 


Select @Id = Id From sysobjects Where Name = 'TmpHavaleh'
if not Exists(SELECT * FROM syscolumns WHERE id = @Id and Name = 'JetId')
  Alter Table TmpHavaleh Add JetId INT 