1 files changed, 4 insertions, 4 deletions
diff --git a/src/jqLite.js b/src/jqLite.js
index 1ad4d96d..5f1b9730 100644
--- a/src/jqLite.js
+++ b/src/jqLite.js
@@ -70,7 +70,7 @@ JQLite.prototype = {
       }
       cache[key] = value;
     } else {
-      return cache ? cache[key] : null;
+      return cache ? cache[key] : _null;
     }
   },
 
@@ -115,7 +115,7 @@ JQLite.prototype = {
 
   trigger: function(type) {
     var evnt = document.createEvent('MouseEvent');
-    evnt.initMouseEvent(type, true, true, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
+    evnt.initMouseEvent(type, true, true, window, 0, 0, 0, 0, 0, false, false, false, false, 0, _null);
     this[0].dispatchEvent(evnt);
   },
 
@@ -195,8 +195,8 @@ JQLite.prototype = {
       e.setAttribute(name, value);
     } else {
       var attributes = e.attributes,
-          item = attributes ? attributes.getNamedItem(name) : undefined;
-      return item && item.specified ? item.value : undefined;
+          item = attributes ? attributes.getNamedItem(name) : _undefined;
+      return item && item.specified ? item.value : _undefined;
     }
   },