New to VBA and need help.

I am trying to hide columns based on a condition. My workbook has
numerous worksheets. Each worksheet contains data for a specific
"account" and each column within the "account" worksheet has month end
data. Therefore row 1 of each worksheet contains month-end values and
each row below has various data for that specific "account."
Furthermore, the first worksheet, which basically serves as a "menu",
has a cell with a specific date. What I would like to do is write a
macro in each worksheet representing an "account" that hides all
columns in the "account" worksheets that have not occurred yet. (i.e.
If the date on the menu worksheet is 3/31/05, I would like all columns

that have month-end values exceeding 3/31/05 to be hidden). Any
suggestions?