diff --git a/mozilla/layout/base/src/nsXIFConverter.cpp b/mozilla/layout/base/src/nsXIFConverter.cpp
index b2b168258cc..c91a3294e77 100644
--- a/mozilla/layout/base/src/nsXIFConverter.cpp
+++ b/mozilla/layout/base/src/nsXIFConverter.cpp
@@ -64,6 +64,23 @@ nsXIFConverter::~nsXIFConverter()
 }
 
 
+void nsXIFConverter::SetSelection(nsIDOMSelection* aSelection) {
+  mSelection = aSelection;
+  
+  BeginStartTag("encode");
+  if (mSelection == nsnull)
+  {
+    AddAttribute("selection","0");
+  }
+  else
+  {
+    AddAttribute("selection","1");
+  }
+  FinishStartTag("encode",PR_TRUE,PR_TRUE);
+}
+
+
+
 
 void nsXIFConverter::BeginStartTag(const nsString& aTag)
 {
diff --git a/mozilla/layout/base/src/nsXIFConverter.h b/mozilla/layout/base/src/nsXIFConverter.h
index e208dbc24bc..a936f59a973 100644
--- a/mozilla/layout/base/src/nsXIFConverter.h
+++ b/mozilla/layout/base/src/nsXIFConverter.h
@@ -114,9 +114,8 @@ public:
   // Output routines
   void Write();
 
-  void    SetSelection(nsIDOMSelection* aSelection) {
-    mSelection = aSelection;
-  }
+  void    SetSelection(nsIDOMSelection* aSelection);
+
   nsIDOMSelection*  GetSelection() {
     return mSelection;
   }