public function init()
	{
		parent::init();
		if (! empty($this->theme) && ! in_array($this->theme, $this->_supportedThemes)) {
			throw new InvalidConfigException('Unsupported built-in theme : ' . $this->theme);
		}
		if (isset($this->pluginOptions['animation']) && ! in_array($this->pluginOptions['animation'], $this->_supportedAnimation)) {
			throw new InvalidConfigException('Unsupported animation mode : ' . $this->pluginOptions['animation']);
		}
	}