diff --git a/vendor/assets/javascripts/jquery_ujs.js b/vendor/assets/javascripts/jquery_ujs.js
index 50121d6e..84f9e6bc 100644
--- a/vendor/assets/javascripts/jquery_ujs.js
+++ b/vendor/assets/javascripts/jquery_ujs.js
@@ -18,6 +18,7 @@
 
   // Shorthand to make it a little easier to call public rails functions from within rails.js
   var rails;
+  var $document = $(document);
 
   $.rails = rails = {
     // Link elements bound by jquery-ujs
@@ -279,15 +280,15 @@
 
   };
 
-  if (rails.fire($(document), 'rails:attachBindings')) {
+  if (rails.fire($document, 'rails:attachBindings')) {
 
     $.ajaxPrefilter(function(options, originalOptions, xhr){ if ( !options.crossDomain ) { rails.CSRFProtection(xhr); }});
 
-    $(document).delegate(rails.linkDisableSelector, 'ajax:complete', function() {
+    $document.delegate(rails.linkDisableSelector, 'ajax:complete', function() {
         rails.enableElement($(this));
     });
 
-    $(document).delegate(rails.linkClickSelector, 'click.rails', function(e) {
+    $document.delegate(rails.linkClickSelector, 'click.rails', function(e) {
       var link = $(this), method = link.data('method'), data = link.data('params');
       if (!rails.allowAction(link)) return rails.stopEverything(e);
 
@@ -311,7 +312,7 @@
       }
     });
 
-    $(document).delegate(rails.buttonClickSelector, 'click.rails', function(e) {
+    $document.delegate(rails.buttonClickSelector, 'click.rails', function(e) {
       var button = $(this);
       if (!rails.allowAction(button)) return rails.stopEverything(e);
 
@@ -319,7 +320,7 @@
       return false;
     });
 
-    $(document).delegate(rails.inputChangeSelector, 'change.rails', function(e) {
+    $document.delegate(rails.inputChangeSelector, 'change.rails', function(e) {
       var link = $(this);
       if (!rails.allowAction(link)) return rails.stopEverything(e);
 
@@ -327,7 +328,7 @@
       return false;
     });
 
-    $(document).delegate(rails.formSubmitSelector, 'submit.rails', function(e) {
+    $document.delegate(rails.formSubmitSelector, 'submit.rails', function(e) {
       var form = $(this),
         remote = form.data('remote') !== undefined,
         blankRequiredInputs = rails.blankInputs(form, rails.requiredInputSelector),
@@ -362,7 +363,7 @@
       }
     });
 
-    $(document).delegate(rails.formInputClickSelector, 'click.rails', function(event) {
+    $document.delegate(rails.formInputClickSelector, 'click.rails', function(event) {
       var button = $(this);
 
       if (!rails.allowAction(button)) return rails.stopEverything(event);
@@ -374,11 +375,11 @@
       button.closest('form').data('ujs:submit-button', data);
     });
 
-    $(document).delegate(rails.formSubmitSelector, 'ajax:beforeSend.rails', function(event) {
+    $document.delegate(rails.formSubmitSelector, 'ajax:beforeSend.rails', function(event) {
       if (this == event.target) rails.disableFormElements($(this));
     });
 
-    $(document).delegate(rails.formSubmitSelector, 'ajax:complete.rails', function(event) {
+    $document.delegate(rails.formSubmitSelector, 'ajax:complete.rails', function(event) {
       if (this == event.target) rails.enableFormElements($(this));
     });