diff --git a/layout/forms/nsFormControlFrame.cpp b/layout/forms/nsFormControlFrame.cpp
index 780518a743f9..cf3900dd3ddb 100644
--- a/layout/forms/nsFormControlFrame.cpp
+++ b/layout/forms/nsFormControlFrame.cpp
@@ -59,6 +59,7 @@
 #include "nsIDOMHTMLLegendElement.h"
 #include "nsIDOMHTMLButtonElement.h"
 #include "nsIEventStateManager.h"
+#include "nsIScrollableView.h"
 
 #ifdef DEBUG_evaughan
 //#define DEBUG_rods
@@ -968,3 +969,81 @@ nsFormControlFrame::GetScreenHeight(nsIPresContext* aPresContext, nscoord& aHeig
 
   return NS_ERROR_FAILURE;
 }
+
+// Calculate a frame's position in screen coordinates
+nsresult
+nsFormControlFrame::GetAbsoluteFramePosition(nsIPresContext* aPresContext,
+                                             nsIFrame *aFrame, 
+                                             nsRect& aAbsoluteTwipsRect, 
+                                             nsRect& aAbsolutePixelRect)
+{
+  //XXX: This code needs to take the view's offset into account when calculating
+  //the absolute coordinate of the frame.
+  nsresult rv = NS_OK;
+ 
+  aFrame->GetRect(aAbsoluteTwipsRect);
+  // zero these out, 
+  // because the GetOffsetFromView figures them out
+  aAbsoluteTwipsRect.x = 0;
+  aAbsoluteTwipsRect.y = 0;
+
+    // Get conversions between twips and pixels
+  float t2p;
+  float p2t;
+  aPresContext->GetTwipsToPixels(&t2p);
+  aPresContext->GetPixelsToTwips(&p2t);
+  
+   // Add in frame's offset from it it's containing view
+  nsIView *containingView = nsnull;
+  nsPoint offset;
+  rv = aFrame->GetOffsetFromView(aPresContext, offset, &containingView);
+  if (NS_SUCCEEDED(rv) && (nsnull != containingView)) {
+    aAbsoluteTwipsRect.x += offset.x;
+    aAbsoluteTwipsRect.y += offset.y;
+
+    nsPoint viewOffset;
+    containingView->GetPosition(&viewOffset.x, &viewOffset.y);
+    nsIView * parent;
+    containingView->GetParent(parent);
+    while (nsnull != parent) {
+      nsPoint po;
+      parent->GetPosition(&po.x, &po.y);
+      viewOffset.x += po.x;
+      viewOffset.y += po.y;
+      nsIScrollableView * scrollView;
+      if (NS_OK == containingView->QueryInterface(NS_GET_IID(nsIScrollableView), (void **)&scrollView)) {
+        nscoord x;
+        nscoord y;
+        scrollView->GetScrollPosition(x, y);
+        viewOffset.x -= x;
+        viewOffset.y -= y;
+      }
+      nsIWidget * widget;
+      parent->GetWidget(widget);
+      if (nsnull != widget) {
+        // Add in the absolute offset of the widget.
+        nsRect absBounds;
+        nsRect lc;
+        widget->WidgetToScreen(lc, absBounds);
+        // Convert widget coordinates to twips   
+        aAbsoluteTwipsRect.x += NSIntPixelsToTwips(absBounds.x, p2t);
+        aAbsoluteTwipsRect.y += NSIntPixelsToTwips(absBounds.y, p2t);   
+        NS_RELEASE(widget);
+        break;
+      }
+      parent->GetParent(parent);
+    }
+    aAbsoluteTwipsRect.x += viewOffset.x;
+    aAbsoluteTwipsRect.y += viewOffset.y;
+  }
+
+   // convert to pixel coordinates
+  if (NS_SUCCEEDED(rv)) {
+   aAbsolutePixelRect.x = NSTwipsToIntPixels(aAbsoluteTwipsRect.x, t2p);
+   aAbsolutePixelRect.y = NSTwipsToIntPixels(aAbsoluteTwipsRect.y, t2p);
+   aAbsolutePixelRect.width = NSTwipsToIntPixels(aAbsoluteTwipsRect.width, t2p);
+   aAbsolutePixelRect.height = NSTwipsToIntPixels(aAbsoluteTwipsRect.height, t2p);
+  }
+
+  return rv;
+}
diff --git a/layout/forms/nsFormControlFrame.h b/layout/forms/nsFormControlFrame.h
index 9fe84d84d14c..5bdb8453b4f6 100644
--- a/layout/forms/nsFormControlFrame.h
+++ b/layout/forms/nsFormControlFrame.h
@@ -243,8 +243,20 @@ public:
                                      const nsRect& aDirtyRect,
                                      const nsRect& aRect);
 
+  /**
+   * Helper routine to that returns the height of the screen
+   *
+   */
   static nsresult GetScreenHeight(nsIPresContext* aPresContext, nscoord& aHeight);
 
+  /**
+   * Helper method to get the absolute position of a frame
+   *
+   */
+  static nsresult GetAbsoluteFramePosition(nsIPresContext* aPresContext,
+                                           nsIFrame *aFrame, 
+                                           nsRect& aAbsoluteTwipsRect, 
+                                           nsRect& aAbsolutePixelRect);
 protected:
 
   virtual ~nsFormControlFrame();
diff --git a/layout/html/forms/src/nsFormControlFrame.cpp b/layout/html/forms/src/nsFormControlFrame.cpp
index 780518a743f9..cf3900dd3ddb 100644
--- a/layout/html/forms/src/nsFormControlFrame.cpp
+++ b/layout/html/forms/src/nsFormControlFrame.cpp
@@ -59,6 +59,7 @@
 #include "nsIDOMHTMLLegendElement.h"
 #include "nsIDOMHTMLButtonElement.h"
 #include "nsIEventStateManager.h"
+#include "nsIScrollableView.h"
 
 #ifdef DEBUG_evaughan
 //#define DEBUG_rods
@@ -968,3 +969,81 @@ nsFormControlFrame::GetScreenHeight(nsIPresContext* aPresContext, nscoord& aHeig
 
   return NS_ERROR_FAILURE;
 }
+
+// Calculate a frame's position in screen coordinates
+nsresult
+nsFormControlFrame::GetAbsoluteFramePosition(nsIPresContext* aPresContext,
+                                             nsIFrame *aFrame, 
+                                             nsRect& aAbsoluteTwipsRect, 
+                                             nsRect& aAbsolutePixelRect)
+{
+  //XXX: This code needs to take the view's offset into account when calculating
+  //the absolute coordinate of the frame.
+  nsresult rv = NS_OK;
+ 
+  aFrame->GetRect(aAbsoluteTwipsRect);
+  // zero these out, 
+  // because the GetOffsetFromView figures them out
+  aAbsoluteTwipsRect.x = 0;
+  aAbsoluteTwipsRect.y = 0;
+
+    // Get conversions between twips and pixels
+  float t2p;
+  float p2t;
+  aPresContext->GetTwipsToPixels(&t2p);
+  aPresContext->GetPixelsToTwips(&p2t);
+  
+   // Add in frame's offset from it it's containing view
+  nsIView *containingView = nsnull;
+  nsPoint offset;
+  rv = aFrame->GetOffsetFromView(aPresContext, offset, &containingView);
+  if (NS_SUCCEEDED(rv) && (nsnull != containingView)) {
+    aAbsoluteTwipsRect.x += offset.x;
+    aAbsoluteTwipsRect.y += offset.y;
+
+    nsPoint viewOffset;
+    containingView->GetPosition(&viewOffset.x, &viewOffset.y);
+    nsIView * parent;
+    containingView->GetParent(parent);
+    while (nsnull != parent) {
+      nsPoint po;
+      parent->GetPosition(&po.x, &po.y);
+      viewOffset.x += po.x;
+      viewOffset.y += po.y;
+      nsIScrollableView * scrollView;
+      if (NS_OK == containingView->QueryInterface(NS_GET_IID(nsIScrollableView), (void **)&scrollView)) {
+        nscoord x;
+        nscoord y;
+        scrollView->GetScrollPosition(x, y);
+        viewOffset.x -= x;
+        viewOffset.y -= y;
+      }
+      nsIWidget * widget;
+      parent->GetWidget(widget);
+      if (nsnull != widget) {
+        // Add in the absolute offset of the widget.
+        nsRect absBounds;
+        nsRect lc;
+        widget->WidgetToScreen(lc, absBounds);
+        // Convert widget coordinates to twips   
+        aAbsoluteTwipsRect.x += NSIntPixelsToTwips(absBounds.x, p2t);
+        aAbsoluteTwipsRect.y += NSIntPixelsToTwips(absBounds.y, p2t);   
+        NS_RELEASE(widget);
+        break;
+      }
+      parent->GetParent(parent);
+    }
+    aAbsoluteTwipsRect.x += viewOffset.x;
+    aAbsoluteTwipsRect.y += viewOffset.y;
+  }
+
+   // convert to pixel coordinates
+  if (NS_SUCCEEDED(rv)) {
+   aAbsolutePixelRect.x = NSTwipsToIntPixels(aAbsoluteTwipsRect.x, t2p);
+   aAbsolutePixelRect.y = NSTwipsToIntPixels(aAbsoluteTwipsRect.y, t2p);
+   aAbsolutePixelRect.width = NSTwipsToIntPixels(aAbsoluteTwipsRect.width, t2p);
+   aAbsolutePixelRect.height = NSTwipsToIntPixels(aAbsoluteTwipsRect.height, t2p);
+  }
+
+  return rv;
+}
diff --git a/layout/html/forms/src/nsFormControlFrame.h b/layout/html/forms/src/nsFormControlFrame.h
index 9fe84d84d14c..5bdb8453b4f6 100644
--- a/layout/html/forms/src/nsFormControlFrame.h
+++ b/layout/html/forms/src/nsFormControlFrame.h
@@ -243,8 +243,20 @@ public:
                                      const nsRect& aDirtyRect,
                                      const nsRect& aRect);
 
+  /**
+   * Helper routine to that returns the height of the screen
+   *
+   */
   static nsresult GetScreenHeight(nsIPresContext* aPresContext, nscoord& aHeight);
 
+  /**
+   * Helper method to get the absolute position of a frame
+   *
+   */
+  static nsresult GetAbsoluteFramePosition(nsIPresContext* aPresContext,
+                                           nsIFrame *aFrame, 
+                                           nsRect& aAbsoluteTwipsRect, 
+                                           nsRect& aAbsolutePixelRect);
 protected:
 
   virtual ~nsFormControlFrame();