run code only when certain cells selected

[trevorc]

Hi All,
I'm trying to get the code below to run via a button click only when the active/selected cell is within a certain range. Currently that is between B2 and X5000, this is were I have customer data, and not if the cursor is anywere else on the sheet. I have tried - If Sheets("Clipsal Customer").Range.Selection("A4:Z5000") Then, but this throws up the error. Also tried to use If Not Intersect(Target, Sh.Range("A4:A5000")) Is Nothing Then... but can't get that to work either.
W
hat I need is code that first checks if the currently selected cell is within the desiered range then run the code.
Any help is appriciated.

 Sub button_click1()
        Sheets("Payment Advice").Range("B3") = Date
        Sheets("Payment Advice").Range("B4") = Range("a" & Mid(ActiveCell.Address, 4, 4))
        Sheets("Payment Advice").Range("B5") = Range("g" & Mid(ActiveCell.Address, 4, 4))
        Sheets("Payment Advice").Range("B6") = Range("h" & Mid(ActiveCell.Address, 4, 4))
        Sheets("Payment Advice").Range("B7") = Range("i" & Mid(ActiveCell.Address, 4, 4))
        Sheets("Payment Advice").Range("B8") = Range("j" & Mid(ActiveCell.Address, 4, 4))
        Sheets("Payment Advice").Range("B9") = Range("k" & Mid(ActiveCell.Address, 4, 4))
        Sheets("Payment Advice").Select
End Sub