Hide Columns based on Date value in cell (Worksheet Change event)

Looking for a worksheet_change event macro that will automatically hide columns based on a value in cell S3. S3 is a data validation pick list of months based on the 1st day of each (e.g. 1/1/2014, 2/1/2014, 3/1/2014, etc.). I have date columns in row 6 from columns T through AQ. These values are 1/1/2014 (T6), 2/1/2104 (U6), 3/1/2014 (V6)....12/1/2015 (AQ6). I would like to hide columns that have a date in row 6 (T6:AQ6) that is LESS THAN (<) the date in S3 after the cell is value is changed.

Hope this makes sense. Let me know if you have any ?'s.

Thank you!!!