changing to environment friendly

blacklight_google_analytics.rb

# Change to your Google Web id 
BlacklightGoogleAnalytics.web_property_id = case Rails.env.to_s
when 'development'
  'UA-3-1' 
when 'test'
  nil
else
  'UA-2-1'
end

google_analytics.js.erb

<% if BlacklightGoogleAnalytics.web_property_id %>

  var _gaq = _gaq || [];
  _gaq.push(['_setAccount', '<%= BlacklightGoogleAnalytics.web_property_id %>']);
  _gaq.push(['_trackPageview']);

  (function() {
    var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
    ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
    var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })

<% end %>