Hide Rows Meeting Date Criteria

I have a macro that hides rows in my workbook if certain criterias are met. I'd like to add a criteria to the logic that only hides rows if the date in cell 17 is less than 3 months from today's date. The date in cell 17 is shown in this format: 25-03-2008.

Sub ForceHide()
Dim ws As Worksheet
Dim line As Integer
Dim Endline As Long
For Each ws In Worksheets
If ws.Name <> " Total" And ws.Name <> "Batch" And ws.Name <> "Summary" And ws.Name <> "PivotTable" And ws.Name <> "Fields" And ws.Name <> "RTP" Then
With ws........................