helped turbolinks to redo JS

app/assets/javascripts/daily_news.js.coffee

@@ -2,11 +2,14 @@
 # All this logic will automatically be available in application.js.
 # You can use CoffeeScript in this file: http://coffeescript.org/
 
-$ -> 
+ready = -> 
   $(".has-translation").mouseover ->
     $(".translation-bubble", this).show()
     $(this).css("z-index", 100)
 
   $(".has-translation").mouseout ->
     $(".translation-bubble", this).hide()
-    $(this).css("z-index", 0)
+    $(this).css("z-index", 0)
+
+$(document).ready(ready)
+$(document).on('page:load', ready)

db/migrate/20131115030223_add_index_to_words.rb

@@ -0,0 +1,6 @@
+class AddIndexToWords < ActiveRecord::Migration
+  def change
+    add_index :words, :chars_trad
+    add_index :words, :chars_simp
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20131106061700) do
+ActiveRecord::Schema.define(version: 20131115030223) do
 
   create_table "compound_word_links", force: true do |t|
     t.integer  "compound_id"
@@ -93,4 +93,7 @@
     t.datetime "stroke_image_updated_at"
   end
 
+  add_index "words", ["chars_simp"], name: "index_words_on_chars_simp", using: :btree
+  add_index "words", ["chars_trad"], name: "index_words_on_chars_trad", using: :btree
+
 end