diff --git a/CHANGELOG b/CHANGELOG
index 4baa9a1..2294a59 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,5 +1,7 @@
 *SVN*
 
+* Fix simulated attribute reading for IE for "href", "src" and boolean attributes.  [Mislav Marohnić, Thomas Fuchs]
+
 * Form.Element.disable() will now call blur(), removed blur() call from Form.Element.enable().  Closes #6034.  [tdd]
 
 * Optimize document.getElementsByClassName and finalize DOM performance optimization refactoring.  Closes #6696.  [Mislav Marohnić]
diff --git a/src/dom.js b/src/dom.js
index e0cdb95..f8e1ac9 100644
--- a/src/dom.js
+++ b/src/dom.js
@@ -523,16 +523,16 @@ Element._attributeTranslations = {
   }
 };
 
-with (Element._attributeTranslations.values) {
-  Object.extend(this, {
-    href: _getAttr,
-    src:  _getAttr,
-    disabled: _flag,
-    checked:  _flag,
-    readonly: _flag,
-    multiple: _flag
-  });
-};
+(function() {
+	Object.extend(this, {
+	  href: this._getAttr,
+	  src:  this._getAttr,
+	  disabled: this._flag,
+	  checked:  this._flag,
+	  readonly: this._flag,
+	  multiple: this._flag
+	});
+}).call(Element._attributeTranslations.values);
 
 Element.Methods.Simulated = {
   hasAttribute: function(element, attribute) {
diff --git a/test/unit/dom.html b/test/unit/dom.html
index e7561f6..c8dc1ff 100644
--- a/test/unit/dom.html
+++ b/test/unit/dom.html
@@ -210,9 +210,18 @@
 <a id="attributes_with_issues_1" href="test.html" accesskey="L" tabindex="50" title="a link"></a>
 <a id="attributes_with_issues_2" href="" accesskey="" tabindex="" title=""></a>
 <a id="attributes_with_issues_3"></a>
+<form id="attributes_with_issues_form" method="post" action="blah">
+  <input type="checkbox" id="attributes_with_issues_checked" name="a" checked="checked"/>
+  <input type="checkbox" id="attributes_with_issues_disabled" name="b" checked="checked" disabled="disabled"/>
+  <input type="text" id="attributes_with_issues_readonly" name="c" readonly="readonly" value="blech"/>
+  <select id="attributes_with_issues_multiple" name="e" multiple="multiple">
+    <option>blech</option>
+    <option>blah</option>
+  </select>
+</form>
 
 <div id="dom_attribute_precedence">
-  <form>
+  <form action="blech" method="post">
     <input type="submit" id="update" />
   </form>
 </div>
@@ -725,17 +734,18 @@
     }},
     
     testElementReadAttribute: function() {with(this) {
-      assertEqual('test.html' , $('attributes_with_issues_1').readAttribute('href'),
-        'NOTE: Due to a bug in IE\'s proprietary iFlags extension to getAttribute(), '+
-        '"href" attribute lookup fails to grab the exact attribute value for protocols '+
-        'other than http(s), which makes this test fail when run locally (file protocol).');
+      assertEqual('test.html' , $('attributes_with_issues_1').readAttribute('href'));
       
       assertEqual('L' , $('attributes_with_issues_1').readAttribute('accesskey'));
       assertEqual('50' , $('attributes_with_issues_1').readAttribute('tabindex'));
       assertEqual('a link' , $('attributes_with_issues_1').readAttribute('title'));
 
       ['href', 'accesskey', 'accesskey', 'title'].each(function(attr){
-          assertEqual('' , $('attributes_with_issues_2').readAttribute(attr));
+        assertEqual('' , $('attributes_with_issues_2').readAttribute(attr));
+      });
+      
+      ['checked','disabled','readonly','multiple'].each(function(attr){
+        assertEqual(attr, $('attributes_with_issues_'+attr).readAttribute(attr));
       });
     
       var elements = $('custom_attributes').immediateDescendants();