public function setBasePath($value)
	{
		if(($basePath=realpath($value))!==false && is_dir($basePath) && is_writable($basePath))
			$this->_basePath=$basePath;
		else
			throw new CException(Yii::t('yii','CAssetManager.basePath "{path}" is invalid. Please make sure the directory exists and is writable by the Web server process.',
				array('{path}'=>$value)));
	}