Trying to find out which ArcGIS Javascript API a webpage uses -

To see Firefox Firebug it is possible that the JavaScript API is running on the site - I know its arguments JavaScript , But to find out which version it is?

Usually the ARCs use the API hosted on it if you use the source code (any In the browser), find the line below and it will tell you the API version.

  & lt; Script type = "text / javascript" src = "http: //js.arcgis.com/3.8/" & gt; & Lt; / Script & gt;