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@@ -1,3 +1,5 @@
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+* Remove the redefinition of Element#getOffsetParent in IE. [staaky, jddalton]
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+
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 * Make Element#getDimensions always use offset(Height|Width) rather than client(Height|Width). [staaky, jddalton]
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 * Make Function#argumentNames use Function.prototype.toString. [Garrett Smith, jddalton, kangax]

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@@ -594,9 +594,16 @@ Element.Methods = {
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   getOffsetParent: function(element) {
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     element = $(element);
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+    
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+    // IE throws an error if the element is not in the document.
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+    if (element.sourceIndex < 1) return $(document.body);
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+    
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     var op = element.offsetParent, docElement = document.documentElement;
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-    if (op && op != docElement) return $(op);
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-
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+    if (op && op !== docElement &&
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+     Element.getStyle(op, 'position') !== 'static') {
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+      return $(op);
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+    }
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+    
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     while ((element = element.parentNode) && element !== docElement &&
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      element !== document) {
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       if (Element.getStyle(element, 'position') !== 'static')
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@@ -835,23 +842,6 @@ if (Prototype.Browser.Opera) {
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 else if (Prototype.Browser.IE) {
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   // IE doesn't report offsets correctly for static elements, so we change them
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   // to "relative" to get the values, then change them back.  
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-  Element.Methods.getOffsetParent = Element.Methods.getOffsetParent.wrap(
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-    function(proceed, element) {
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-      element = $(element);
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-      // IE throws an error if element is not in document
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-      try { element.offsetParent }
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-      catch(e) { return $(document.body) }
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-      
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-      var position = Element.getStyle(element, 'position');
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-      if (position !== 'static') return proceed(element);
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-      Element.setStyle(element, { position: 'relative' });
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-      
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-      var value = proceed(element);
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-      Element.setStyle(element, { position: position });
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-      return value;
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-    }
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-  );
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-  
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   $w('positionedOffset viewportOffset').each(function(method) {
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     Element.Methods[method] = Element.Methods[method].wrap(
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       function(proceed, element) {
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@@ -870,7 +860,7 @@ else if (Prototype.Browser.IE) {
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         Element.setStyle(element, style);
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         var value = proceed(element);
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-        Element.setStyle(element, { position: position });
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+        element.style.position = position;
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         return value;
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       }
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     );