#### Popup example

Uses an overlay to create a popup.

Click on the map to get a popup. The popup is composed of a few basic elements: a container, a close button, and a place for the content. To anchor the popup to the map, an `ol.Overlay` is created with the popup container. A listener is registered for the map's `click` event to display the popup, and another listener is set as the `click` handler for the close button to hide the popup.

See the popup.js source to see how this is done.

overlay, popup, mapquest, openaerial