From d22a9988faefd918e9f2c406d2bada064b0d6b90 Mon Sep 17 00:00:00 2001
From: Andrew Dupont <prototype@andrewdupont.net>
Date: Fri, 27 Feb 2009 16:45:51 -0600
Subject: [PATCH] Null out references to elements in cache on page unload. Need
 this in addition to the Event#stopObserving calls to clean up memory leaks.
 [#425 state:resolved] (ykphuah, mr_justin, Andrew Dupont)

---
 CHANGELOG        | 2 ++
 src/dom/event.js | 8 +++++---
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/CHANGELOG b/CHANGELOG
index 40bda7d..e67b998 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,5 @@
+* Null out references to elements in cache on page unload. Need this in addition to the Event#stopObserving calls to clean up memory leaks. [#425 state:resolved] (ykphuah, mr_justin, Andrew Dupont)
+
 * Ensure `toString` and `valueOf` properties are copied to a subclass only when necessary in IE6. [@382 state:resolved] (Samuel Lebeau)
 
 * Make sure `getAttribute` is used without flag when accessing the "type" attribute of an iframe (IE throws error otherwise). [#118 state:resolved] (Zekid, kangax)
diff --git a/src/dom/event.js b/src/dom/event.js
index 2feaa0c..0fa3fec 100644
--- a/src/dom/event.js
+++ b/src/dom/event.js
@@ -1,7 +1,7 @@
 (function() {
   
   /** section: dom
-   *  Event
+   * Event
   **/  
   var Event = {
     KEY_BACKSPACE: 8,
@@ -299,8 +299,10 @@
   }
   
   function _destroyCache() {    
-    for (var i = 0, length = CACHE.length; i < length; i++)
+    for (var i = 0, length = CACHE.length; i < length; i++) {
       Event.stopObserving(CACHE[i]);
+      CACHE[i] = null;
+    }
   }
   
   var CACHE = [];
@@ -481,7 +483,7 @@
   });
 
   /** section: dom
-   *  document
+   * document
   **/
   Object.extend(document, {
     /** related to: Event.fire