def __init__(self, upImageText = None, downImageText=None, handler = None,
                       **kwargs):
        if not kwargs.has_key('StyleName'): kwargs['StyleName']=self.STYLENAME_DEFAULT

        CustomButton.__init__(self, upImageText, downImageText, handler,
                                    **kwargs)
Constructor for PushButton.
dataset/ETHPy150Open anandology/pyjamas/library/gwt/ui/PushButton.py/PushButton.__init__