protected function getAssetsUrl()
	{
		if (!isset($this->_assetsUrl))
		{
			$path = dirname(__FILE__) . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . 'assets';
			$this->_assetsUrl = Yii::app()->assetManager->publish($path, false, -1, $this->forceCopyAssets);
		}
		
		return $this->_assetsUrl;
	}