'Constructor arguments:
name -- The tab\'s name, which will appear in its button.
select_command -- The command to be called upon selection of the
tab. It is called with the tab\'s name as an argument.'

def __init__(self, name, select_command, tab_row, tab_set):

    Frame.__init__(self, tab_row, borderwidth=self.bw, relief=RAISED)
    self.name = name
    self.select_command = select_command
    self.tab_set = tab_set
    self.is_last_in_row = False
    self.button = Radiobutton(self, text=name, command=self._select_event, padx=5, pady=1, takefocus=FALSE, indicatoron=FALSE, highlightthickness=0, selectcolor='', borderwidth=0)
    self.button.pack(side=LEFT, fill=X, expand=True)
    self._init_masks()
    self.set_normal()
