'do script: Execute script commands
Required argument: JavaScript text to execute
Keyword argument window: optional Window Identifier (as supplied by the ListWindows event) specifying context in which to execute the script
Keyword argument _attributes: AppleEvent attribute dictionary
Returns: Return value'

def do_script(self, _object, _attributes={}, **_arguments):

    _code = 'misc'
    _subcode = 'dosc'
    aetools.keysubst(_arguments, self._argmap_do_script)
    _arguments['----'] = _object
    (_reply, _arguments, _attributes) = self.send(_code, _subcode, _arguments, _attributes)
    if _arguments.get('errn', 0):
        raise aetools.Error, aetools.decodeerror(_arguments)
    if _arguments.has_key('----'):
        return _arguments['----']
