When executing a script that contains a jQuery command,
            it's important that the jQuery library has been loaded first.
            This method will load jQuery if it wasn't already loaded.

def safe_execute_script(self, script):
        """ When executing a script that contains a jQuery command,
            it's important that the jQuery library has been loaded first.
            This method will load jQuery if it wasn't already loaded. """
        try:
            self.execute_script(script)
        except Exception:
            # The likely reason this fails is because: "jQuery is not defined"
            self.activate_jquery()  # It's a good thing we can define it here
            self.execute_script(script)