--- a/app/assets/javascripts/zp.hash_magic.js	Thu Jul 03 14:59:21 2014 +0900
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,29 +0,0 @@
-//= require zp.formatter
-(function($) {
-  window.zp.hash_magic = {
-    load_hash: function() {
-      var
-        format = window.location.hash.slice(1),
-        tab_link = function(fmt) {
-                     return zp.formatter.links().filter("[href='#" + fmt + "']")
-                   }
-      if(!tab_link(format).length) format = "pl"
-      tab_link(format).click()
-    },
-    set_hash: function(e) {
-      var
-        format = zp.formatter.current(),
-        newpath = window.location.pathname
-      if (format !== "pl") { newpath += "#" + format }
-      history.replaceState(null, "", newpath)
-    },
-    init: function() {
-      if (!$("#paste").length) return
-      this.load_hash()
-      if (history.replaceState) {
-        this.set_hash()
-        zp.formatter.links().on('shown.bs.tab', this.set_hash)
-      }
-    }
-  }
-})(jQuery)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/app/assets/javascripts/zp.hash_magic.js.coffee	Thu Jul 03 15:03:34 2014 +0900
@@ -0,0 +1,21 @@
+#= require zp.formatter
+window.zp.hash_magic =
+  load_hash: ->
+    format = window.location.hash.slice(1)
+    tab_link = (fmt) -> zp.formatter.links().filter("[href='##{fmt}']")
+
+    format = "pl" unless tab_link(format).length
+    tab_link(format).click()
+
+  set_hash: (e) ->
+    format = zp.formatter.current()
+    newpath = window.location.pathname
+    newpath += "##{format}" if (format != "pl")
+    history.replaceState null, "", newpath
+
+  init: ->
+    return unless $("#paste").length
+    @load_hash()
+    if (history.replaceState)
+      @set_hash()
+      zp.formatter.links().on("shown.bs.tab", this.set_hash)