Today I added some further help to address your site’s security concerns that might be raised by adding .js files. The new content is here.
About Dixon Jones, FRSA, MBA, BA(Hons).
Dixon is a world renowned SEO Speaker on search engine algorithms and information retrieval and holder of the Lifetime Achievement Award for services to the search community. Dixon is a moderator on Webmasterworld and has spoken or been published at Search Engine land, State Of Search, WordTracker, Authoritas, SE Roundtable, Brighton SEO, Tedx, Pubcon, and many more.