> For the complete documentation index, see [llms.txt](https://docs.exoclick.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.exoclick.com/publishers/sites-and-zones/dfi-mfi-html-events.md).

# Adding HTML Events for Fullpage Interstitials

The **Desktop Fullpage Interstitial** and **Mobile Fullpage Interstitial** ad formats can interact with your website through some HTML events. You can listen to these events to trigger additional actions in your website.

## creativeDisplayed

When a Fullpage Interstitial ad is loaded in the user's browser, it generates the event `creativeDisplayed-XXXXXXX`, where `XXXXXXX` is the zone id corresponding to that Fullpage Interstitial ad zone.

This event listener allows you to programmatically execute any action you may need on your website and get more information about the element that triggered the event, such as the URL, id, classes and text.

In the example below, we are displaying the `Creative shown!` message in Console when the Fullpage Interstitial is shown and we are listing all the details from the element that triggered the event:

```js
<script async type="application/javascript" src="https://a.pemsrv.com/ad-provider.js"></script>
<ins class="eas6a97888e35" data-zoneid="1234567"></ins>
<script>(AdProvider = window.AdProvider || []).push({"serve": {}});</script>

<a href="https://www.exoclick.com">Visit exoclick.com!</a>

<script type="application/javascript">
    document.addEventListener('creativeDisplayed-1234567', function (e) {
        console.log("Creative shown!");
        console.log(e.detail);
    }, false);
</script>
```

## message

If your Fullpage Interstitial ad zone serves an iframe campaign, then you can add an event listener to the event `message`. This allows you to programmatically execute any action you may need on your website after the iframe is loaded on user's browser.

The event data contains the properties `id`, which is an md5 of the iframe url parameter, and `loaded` being true. In the example below, we are displaying the `Iframe loaded!` message in Console when the Iframe is shown to the user's browser:

```js
<script async type="application/javascript" src="https://a.pemsrv.com/ad-provider.js"></script>
<ins class="eas6a97888e35" data-zoneid="1234567"></ins>
<script>(AdProvider = window.AdProvider || []).push({"serve": {}});</script>

<a href="https://www.exoclick.com">Visit exoclick.com!</a>

<script type="application/javascript">
    window.addEventListener('message', function(event) {
        if (event.data.id && event.data.loaded) {
            console.log("Iframe loaded!")
        }
    });
</script>
```


---

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