DECLARE @Id Int                               

Select @Id = Id From sysobjects Where Name = 'TmpHeadh'
IF not Exists(SELECT * FROM syscolumns WHERE id = @Id and Name = 'UserReciver')
  Alter Table TmpHeadh Add UserReciver SMALLINT NULL

Select @Id = Id From sysobjects Where Name = 'Headh'
IF not Exists(SELECT * FROM syscolumns WHERE id = @Id and Name = 'UserReciver')
  Alter Table Headh Add UserReciver SMALLINT NULL