'Construct a scrollbar widget with the parent MASTER.
Valid resource names: activebackground, activerelief,
background, bd, bg, borderwidth, command, cursor,
elementborderwidth, highlightbackground,
highlightcolor, highlightthickness, jump, orient,
relief, repeatdelay, repeatinterval, takefocus,
troughcolor, width.'

def __init__(self, master=None, cnf={}, **kw):

    Widget.__init__(self, master, 'scrollbar', cnf, kw)
