> ## Documentation Index
> Fetch the complete documentation index at: https://docs.globres.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Language Synchronization

For websites that support multiple languages, it’s essential that the displayed banners are synchronized with the
active language of the page. InZone offers the `setActiveLanguage` function, which allows you to manually set the
language for the displayed campaigns, ensuring that the ads are presented in the correct language based on the user’s preference.

## Usage

You can call `setActiveLanguage` whenever the language changes on your site. For example, if your website uses internationalization
(i18n) and the user switches languages, this function ensures that the banners also switch to the appropriate language

```javascript theme={null}
window.InZone.setActiveLanguage('en'); // Switches campaign banners to English
```

* **Parameter:** The function accepts a string value representing the language code (e.g., 'en' for English, 'fr' for French).
* **Effect:** Once the language is set, all campaigns will automatically refresh and display based on the selected language.

## Example

If your website changes language dynamically (e.g., via [i18next](https://www.i18next.com/)), you can call the function within the existing language-switching logic:

```javascript theme={null}
i18next.changeLanguage('en', () => {
  window.InZone.setActiveLanguage('en');
});
```

This ensures that users always see the correct localized campaigns, improving the relevancy and effectiveness of your campaigns.