JavaScript and Google Maps

In my html file, I 'import' the google maps' API as follows:

<script src="http://maps.google.com/maps/api/js?sensor=false"></script>

In my .js file, I make calls to the google map's API.

IntelliJ puts a wavy line under the google map's API calls and provides no code-completion for the map's API.

I don't see any way to add the API to the project libraries.

Is there a way?

(Currently using early-access IntelliJ version 11 ultimate edition.)