cleanup and add translation hooks

app/helpers/application_helper.rb

@@ -77,4 +77,20 @@ module ApplicationHelper
     link_to 'Twitter', 'https://www.twitter.com/Qwaiter', target: :_blank
   end
 
+  # Add a script call to be executed when the dom is loaded.
+  # When called without a script it will return the total added script content
+  #  - onload_javascript 'var a=1'
+  #  - onload_javascript 'var b=3'
+  #  = onload_javascript #=> var a=1;var b=3
+  def onload_javascript(script = nil)
+    if block_given?
+      script = script.to_s
+      value = nil
+      buffer = with_output_buffer {  value = yield }
+      script += (buffer.presence || value).to_s
+    end
+    script = script.call if script.respond_to?(:call)
+    script.present? ? (@onload_javascripts ||= []) << script : (@onload_javascripts || []).join(';')
+  end
+
 end