Configuration of js2-mode

[azubi]

Hi,

I'm using emacs and js2-mode to develop (very) simple three.js 
application. Unfortunately, js2-mode shows every object and variables 
provided by the three.js library as unknow or undefined. The library is 
included into the html page (with a <script> marker) and not into my own 
script. Is there a way to say to js2-mode that it should also consider 
the classes and variables provided by the external library?

Thank you in advance for your help