def get_image_resize(self, name):
        "Returns image resize for function fields images"

        if self.image_medium:

            if name == 'image_big':
                value = unicode(self.resize_image(self.image_medium, [1024, 1024]))
            elif name == 'image_small':
                value = unicode(self.resize_image(self.image_medium, [64, 64]))

        else:
            value = None

        return value