Changing cell colour on entry & exit

Hi! can anyone help with this?

I want to change the colour of a specific cell when the user selects the cell, which I can do thus:

*********code start*******
Private Sub Worksheet_SelectionChange(ByVal Target As Range)

If Target.Address = "$C$8" Then
With Selection.Interior
.ColorIndex = 3
.Pattern = xlSolid
.PatternColorIndex = xlAutomatic
End With
End If
End Sub
********code ends*******

However, I want the cell to revert to it's original colour on deselecting the cell....can this be done? (forgive me if this is a stupid question, but I did all my VBA programming in Access.....in which I'd use the on enter & on exit properties, but I can't find an equivalent in Excel)

Thanks for your help,

Mark