Fills given field with given value

        :param field_name: name of field to fill
        :param field_value: value with which to fill field

def fill_form_field(self, field_name, field_value):
        """Fills given field with given value

        :param field_name: name of field to fill
        :param field_value: value with which to fill field
        """
        self.browser.execute_script(
            "document.getElementsByName(\"" + str(
                field_name) + "\")[0].value = \"" + str(field_value) + "\"")