def goto(key)
      if @idx.has_key?(key.to_sym)
        @dat_file.pos = @idx[key.to_sym]
      else
        raise Exception.new "Invalid DAT section \"#{key}\""
      end
    end
def goto(key)
      if @idx.has_key?(key.to_sym)
        @dat_file.pos = @idx[key.to_sym]
      else
        raise Exception.new "Invalid DAT section \"#{key}\""
      end
    end
Go to a section of the Mascot DAT file