# Capturing SharinPix Selection Event
The present article shows how to detect whether one or more images have been selected in the SharinPix Album.
## Selection event
Whenever an action is performed on a SharinPix Album, a corresponding JavaScript event is emitted. In this case, whenever one or more images are selected , the `images-selected` event is emitted.
{% hint style="success" %}
**IMPORTANT:**
The `images-selected` event is also emitted whenever one or more images are **deselected**.
{% endhint %}
## Capturing SharinPix Event
```javascript
var eventMethod = window.addEventListener ? "addEventListener" : "attachEvent";
var eventer = window[eventMethod];
var messageEvent = eventMethod == "attachEvent" ? "onmessage" : "message";
eventer(messageEvent, function(e) {
if(e.origin !== "https://app.sharinpix.com") return;
if(e.data.name === 'images-selected') {
console.log('Selection Event detected!');
}
});
```
The above code checks if the currently-emitted event is `images-selected` . The event is identified through its attribute `name` which is found in the event data (`e.data.name`).
{% hint style="info" %}
**Info:**
The event data contains an attribute **payload** (`e.data.payload`) which contains extensive data on the selected image(s).
{% endhint %}
## Example: Display the number of selected images
This section will show the implementation of a Visualforce Page that will **detect** and **display** the number of images selected in a SharinPix Album. This example only serves as a way to give you a sense of what can be done with SharinPix events.
## Visualforce Page
The code snippet below shows the implementation of the Visualforce Page used in this example.
```html
0
```
* The Visualforce Page is added to the record page of the **Account** object. Since no images have been selected from the SharinPix Album, the counter (indicated in the screenshot below) displays a **"0".**
* When one or more images are selected, the counter displays the corresponding value.
* When an image is deselected, the counter reacts accordingly.
