diff --git a/assets/scripts/app/utils/helpers.coffee b/assets/scripts/app/utils/helpers.coffee
index 52bd0c50..77905163 100644
--- a/assets/scripts/app/utils/helpers.coffee
+++ b/assets/scripts/app/utils/helpers.coffee
@@ -4,8 +4,6 @@ config_keys_map = Travis.CONFIG_KEYS_MAP
 config = ENV.config
 githubCommitUrl = Travis.Urls.githubCommit
 timeago = $.timeago
-intersect = $.intersect
-only = $.only
 mapObject = $.map
 
 colors = {
@@ -16,6 +14,28 @@ colors = {
   canceled: 'gray'
 }
 
+mapObject = (elems, callback, arg) ->
+  value = undefined
+  key = undefined
+  ret = []
+  i = 0
+  for key of elems
+    value = callback(elems[key], key, arg)
+    ret[ret.length] = value  if value?
+  ret.concat.apply [], ret
+
+only = (object) ->
+  keys = Array::slice.apply(arguments)
+  object = (if (typeof keys[0] is 'object') then keys.shift() else this)
+  result = {}
+  for key of object
+    result[key] = object[key]  unless keys.indexOf(key) is -1
+  result
+
+intersect = (array, other) ->
+  array.filter (element) ->
+    other.indexOf(element) != -1
+
 compact = (object) ->
   result = {}
   (result[key] = value unless Ember.isEmpty(value)) for key, value of object || {}
diff --git a/assets/scripts/travis.coffee b/assets/scripts/travis.coffee
index b93118c7..c16a518f 100644
--- a/assets/scripts/travis.coffee
+++ b/assets/scripts/travis.coffee
@@ -21,6 +21,7 @@ if charm_key = $('meta[name="travis.charm_key"]').attr('value')
 
 require 'utils/ajax'
 
+require 'utils/keys-map'
 require 'utils/urls'
 require 'utils/helpers'
 require 'utils/status-image-formats'