converting excel macro into a google docs script??

Does anyone know what I would need to do in order to convert this macro into a working google docs script?

Sub vessel7()
'
' vessel7 Macro
' update 7
'

'
    Range("E16:H20").Select
    Selection.Copy
    Range("E15").Select
    ActiveSheet.PasteSpecial Format:=3, Link:=1, DisplayAsIcon:=False, _
        IconFileName:=False
    Range("J16:L20").Select
    Selection.Copy
    Range("J15").Select
    ActiveSheet.PasteSpecial Format:=3, Link:=1, DisplayAsIcon:=False, _
        IconFileName:=False
    Range("M15").Select
End Sub