git init

app/assets/javascripts/application.js

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+// This is a manifest file that'll be compiled into application.js, which will include all the files
+// listed below.
+//
+// Any JavaScript/Coffee file within this directory, lib/assets/javascripts, vendor/assets/javascripts,
+// or vendor/assets/javascripts of plugins, if any, can be referenced here using a relative path.
+//
+// It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the
+// the compiled file.
+//
+// WARNING: THE FIRST BLANK LINE MARKS THE END OF WHAT'S TO BE PROCESSED, ANY BLANK LINE SHOULD
+// GO AFTER THE REQUIRES BELOW.
+//
+//= require jquery
+//= require jquery_ujs
+//= require twitter/bootstrap
+//= require_tree .

app/assets/javascripts/bootstrap.js.coffee

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+jQuery ->
+  $("a[rel=popover]").popover()
+  $(".tooltip").tooltip()
+  $("a[rel=tooltip]").tooltip()

app/assets/javascripts/examples.js.coffee.sample

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+# Place all the behaviors and hooks related to the matching controller here.
+# All this logic will automatically be available in application.js.
+# You can use CoffeeScript in this file: http://jashkenas.github.com/coffee-script/
+jQuery ->
+  $('form').on 'click', '.remove_fields', (event) ->
+    $(this).prev('input[type=hidden]').val('1')
+    $(this).closest('fieldset').hide()
+    event.preventDefault()
+
+  $('form').on 'click', '.add_fields', (event) ->
+    time = new Date().getTime()
+    regexp = new RegExp($(this).data('id'), 'g')
+    $(this).before($(this).data('fields').replace(regexp, time))
+    event.preventDefault()
+