diff --git a/mozilla/htmlparser/src/CNavDTD.cpp b/mozilla/htmlparser/src/CNavDTD.cpp
index 6b4b54b57bc..cc980ffac5f 100644
--- a/mozilla/htmlparser/src/CNavDTD.cpp
+++ b/mozilla/htmlparser/src/CNavDTD.cpp
@@ -291,8 +291,23 @@ PRBool CNavDTD::VerifyContextStack(eHTMLTags aStack[],PRInt32 aCount) const {
  * @return  Non zero count of intermediate nodes; 
  *          0 if unable to comply
  */ //----------------------------------------------------
-PRInt32 CNavDTD::CreateContextMapBetween(PRInt32 aParent,PRInt32 aChild) const {
+PRInt32 CNavDTD::ForwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const {
   PRInt32 result=0;
   return result;
 }
 
+/** -------------------------------------------------------
+ * This method tries to design a context map (without actually
+ * changing our parser state) from the parent down to the
+ * child. 
+ *
+ * @update	gess4/6/98
+ * @param   aParent -- tag type of parent
+ * @param   aChild -- tag type of child
+ * @return  Non zero count of intermediate nodes; 
+ *          0 if unable to comply
+ */ //----------------------------------------------------
+PRInt32 CNavDTD::BackwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const {
+  PRInt32 result=0;
+  return result;
+}
diff --git a/mozilla/htmlparser/src/CNavDTD.h b/mozilla/htmlparser/src/CNavDTD.h
index 6014335290a..73a27e6e612 100644
--- a/mozilla/htmlparser/src/CNavDTD.h
+++ b/mozilla/htmlparser/src/CNavDTD.h
@@ -138,7 +138,19 @@ class CNavDTD : public nsHTMLDTD {
      * @return  Non zero count of intermediate nodes; 
      *          0 if unable to comply
      */ //----------------------------------------------------
-    virtual PRInt32 CreateContextMapBetween(PRInt32 aParent,PRInt32 aChild) const;
+    virtual PRInt32 ForwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const;
+
+    /** -------------------------------------------------------
+     * This method tries to design a context map (without actually
+     * changing our parser state) from the child up to the parent.
+     *
+     * @update	gess4/6/98
+     * @param   aParent -- tag type of parent
+     * @param   aChild -- tag type of child
+     * @return  Non zero count of intermediate nodes; 
+     *          0 if unable to comply
+     */ //----------------------------------------------------
+    virtual PRInt32 BackwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const;
 
 };
 
diff --git a/mozilla/htmlparser/src/COtherDTD.cpp b/mozilla/htmlparser/src/COtherDTD.cpp
index 8076122a835..5a71babaaac 100644
--- a/mozilla/htmlparser/src/COtherDTD.cpp
+++ b/mozilla/htmlparser/src/COtherDTD.cpp
@@ -280,6 +280,7 @@ PRBool COtherDTD::VerifyContextStack(eHTMLTags aStack[],PRInt32 aCount) const {
 }
 
 
+
 /** -------------------------------------------------------
  * This method tries to design a context map (without actually
  * changing our parser state) from the parent down to the
@@ -291,8 +292,23 @@ PRBool COtherDTD::VerifyContextStack(eHTMLTags aStack[],PRInt32 aCount) const {
  * @return  Non zero count of intermediate nodes; 
  *          0 if unable to comply
  */ //----------------------------------------------------
-PRInt32 COtherDTD::CreateContextMapBetween(PRInt32 aParent,PRInt32 aChild) const {
+PRInt32 COtherDTD::ForwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const {
   PRInt32 result=0;
   return result;
 }
 
+/** -------------------------------------------------------
+ * This method tries to design a context map (without actually
+ * changing our parser state) from the parent down to the
+ * child. 
+ *
+ * @update	gess4/6/98
+ * @param   aParent -- tag type of parent
+ * @param   aChild -- tag type of child
+ * @return  Non zero count of intermediate nodes; 
+ *          0 if unable to comply
+ */ //----------------------------------------------------
+PRInt32 COtherDTD::BackwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const {
+  PRInt32 result=0;
+  return result;
+}
diff --git a/mozilla/htmlparser/src/COtherDTD.h b/mozilla/htmlparser/src/COtherDTD.h
index 1d9d174d692..58463bdf108 100644
--- a/mozilla/htmlparser/src/COtherDTD.h
+++ b/mozilla/htmlparser/src/COtherDTD.h
@@ -139,7 +139,19 @@ class COtherDTD : public nsHTMLDTD {
      * @return  Non zero count of intermediate nodes; 
      *          0 if unable to comply
      */ //----------------------------------------------------
-    virtual PRInt32 CreateContextMapBetween(PRInt32 aParent,PRInt32 aChild) const;
+    virtual ForwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const;
+
+    /** -------------------------------------------------------
+     * This method tries to design a context map (without actually
+     * changing our parser state) from the child up to the parent.
+     *
+     * @update	gess4/6/98
+     * @param   aParent -- tag type of parent
+     * @param   aChild -- tag type of child
+     * @return  Non zero count of intermediate nodes; 
+     *          0 if unable to comply
+     */ //----------------------------------------------------
+    virtual PRInt32 BackwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const;
 
 };
 
diff --git a/mozilla/htmlparser/src/nsHTMLDTD.cpp b/mozilla/htmlparser/src/nsHTMLDTD.cpp
index a15c89c4d16..ce31e0619cf 100644
--- a/mozilla/htmlparser/src/nsHTMLDTD.cpp
+++ b/mozilla/htmlparser/src/nsHTMLDTD.cpp
@@ -682,8 +682,22 @@ PRBool nsHTMLDTD::VerifyContextStack(eHTMLTags aStack[],PRInt32 aCount) const {
  * @return  Non zero count of intermediate nodes; 
  *          0 if unable to comply
  */ //----------------------------------------------------
-PRInt32 nsHTMLDTD::CreateContextMapBetween(PRInt32 aParent,PRInt32 aChild) const {
-  PRInt32 result=0;
+PRInt32 nsHTMLDTD::ForwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const{
+  int result=0;
   return result;
 }
 
+/** -------------------------------------------------------
+ * This method tries to design a context map (without actually
+ * changing our parser state) from the child up to the parent.
+ *
+ * @update	gess4/6/98
+ * @param   aParent -- tag type of parent
+ * @param   aChild -- tag type of child
+ * @return  Non zero count of intermediate nodes; 
+ *          0 if unable to comply
+ */ //----------------------------------------------------
+PRInt32 nsHTMLDTD::BackwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const{
+  int result=0;
+  return result;
+}
diff --git a/mozilla/htmlparser/src/nsHTMLDTD.h b/mozilla/htmlparser/src/nsHTMLDTD.h
index fc53ae6e9d1..6dc00d41456 100644
--- a/mozilla/htmlparser/src/nsHTMLDTD.h
+++ b/mozilla/htmlparser/src/nsHTMLDTD.h
@@ -138,7 +138,19 @@ class nsHTMLDTD : public nsIDTD {
      * @return  Non zero count of intermediate nodes; 
      *          0 if unable to comply
      */ //----------------------------------------------------
-    virtual PRInt32 CreateContextMapBetween(PRInt32 aParent,PRInt32 aChild) const;
+    virtual ForwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const;
+
+    /** -------------------------------------------------------
+     * This method tries to design a context map (without actually
+     * changing our parser state) from the child up to the parent.
+     *
+     * @update	gess4/6/98
+     * @param   aParent -- tag type of parent
+     * @param   aChild -- tag type of child
+     * @return  Non zero count of intermediate nodes; 
+     *          0 if unable to comply
+     */ //----------------------------------------------------
+    virtual BackwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const;
 
 };
 
diff --git a/mozilla/htmlparser/src/nsIDTD.h b/mozilla/htmlparser/src/nsIDTD.h
index 162d282ec46..ca85255cf40 100644
--- a/mozilla/htmlparser/src/nsIDTD.h
+++ b/mozilla/htmlparser/src/nsIDTD.h
@@ -104,7 +104,19 @@ class nsIDTD : public nsISupports {
      * @return  Non zero count of intermediate nodes; 
      *          0 if unable to comply
      */ //----------------------------------------------------
-    virtual PRInt32 CreateContextMapBetween(PRInt32 aParent,PRInt32 aChild) const=0;
+    virtual PRInt32 ForwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const=0;
+
+    /** -------------------------------------------------------
+     * This method tries to design a context map (without actually
+     * changing our parser state) from the child up to the parent.
+     *
+     * @update	gess4/6/98
+     * @param   aParent -- tag type of parent
+     * @param   aChild -- tag type of child
+     * @return  Non zero count of intermediate nodes; 
+     *          0 if unable to comply
+     */ //----------------------------------------------------
+    virtual PRInt32 BackwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const=0;
 
 };
 
diff --git a/mozilla/parser/htmlparser/src/CNavDTD.cpp b/mozilla/parser/htmlparser/src/CNavDTD.cpp
index 6b4b54b57bc..cc980ffac5f 100644
--- a/mozilla/parser/htmlparser/src/CNavDTD.cpp
+++ b/mozilla/parser/htmlparser/src/CNavDTD.cpp
@@ -291,8 +291,23 @@ PRBool CNavDTD::VerifyContextStack(eHTMLTags aStack[],PRInt32 aCount) const {
  * @return  Non zero count of intermediate nodes; 
  *          0 if unable to comply
  */ //----------------------------------------------------
-PRInt32 CNavDTD::CreateContextMapBetween(PRInt32 aParent,PRInt32 aChild) const {
+PRInt32 CNavDTD::ForwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const {
   PRInt32 result=0;
   return result;
 }
 
+/** -------------------------------------------------------
+ * This method tries to design a context map (without actually
+ * changing our parser state) from the parent down to the
+ * child. 
+ *
+ * @update	gess4/6/98
+ * @param   aParent -- tag type of parent
+ * @param   aChild -- tag type of child
+ * @return  Non zero count of intermediate nodes; 
+ *          0 if unable to comply
+ */ //----------------------------------------------------
+PRInt32 CNavDTD::BackwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const {
+  PRInt32 result=0;
+  return result;
+}
diff --git a/mozilla/parser/htmlparser/src/CNavDTD.h b/mozilla/parser/htmlparser/src/CNavDTD.h
index 6014335290a..73a27e6e612 100644
--- a/mozilla/parser/htmlparser/src/CNavDTD.h
+++ b/mozilla/parser/htmlparser/src/CNavDTD.h
@@ -138,7 +138,19 @@ class CNavDTD : public nsHTMLDTD {
      * @return  Non zero count of intermediate nodes; 
      *          0 if unable to comply
      */ //----------------------------------------------------
-    virtual PRInt32 CreateContextMapBetween(PRInt32 aParent,PRInt32 aChild) const;
+    virtual PRInt32 ForwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const;
+
+    /** -------------------------------------------------------
+     * This method tries to design a context map (without actually
+     * changing our parser state) from the child up to the parent.
+     *
+     * @update	gess4/6/98
+     * @param   aParent -- tag type of parent
+     * @param   aChild -- tag type of child
+     * @return  Non zero count of intermediate nodes; 
+     *          0 if unable to comply
+     */ //----------------------------------------------------
+    virtual PRInt32 BackwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const;
 
 };
 
diff --git a/mozilla/parser/htmlparser/src/COtherDTD.cpp b/mozilla/parser/htmlparser/src/COtherDTD.cpp
index 8076122a835..5a71babaaac 100644
--- a/mozilla/parser/htmlparser/src/COtherDTD.cpp
+++ b/mozilla/parser/htmlparser/src/COtherDTD.cpp
@@ -280,6 +280,7 @@ PRBool COtherDTD::VerifyContextStack(eHTMLTags aStack[],PRInt32 aCount) const {
 }
 
 
+
 /** -------------------------------------------------------
  * This method tries to design a context map (without actually
  * changing our parser state) from the parent down to the
@@ -291,8 +292,23 @@ PRBool COtherDTD::VerifyContextStack(eHTMLTags aStack[],PRInt32 aCount) const {
  * @return  Non zero count of intermediate nodes; 
  *          0 if unable to comply
  */ //----------------------------------------------------
-PRInt32 COtherDTD::CreateContextMapBetween(PRInt32 aParent,PRInt32 aChild) const {
+PRInt32 COtherDTD::ForwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const {
   PRInt32 result=0;
   return result;
 }
 
+/** -------------------------------------------------------
+ * This method tries to design a context map (without actually
+ * changing our parser state) from the parent down to the
+ * child. 
+ *
+ * @update	gess4/6/98
+ * @param   aParent -- tag type of parent
+ * @param   aChild -- tag type of child
+ * @return  Non zero count of intermediate nodes; 
+ *          0 if unable to comply
+ */ //----------------------------------------------------
+PRInt32 COtherDTD::BackwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const {
+  PRInt32 result=0;
+  return result;
+}
diff --git a/mozilla/parser/htmlparser/src/COtherDTD.h b/mozilla/parser/htmlparser/src/COtherDTD.h
index 1d9d174d692..58463bdf108 100644
--- a/mozilla/parser/htmlparser/src/COtherDTD.h
+++ b/mozilla/parser/htmlparser/src/COtherDTD.h
@@ -139,7 +139,19 @@ class COtherDTD : public nsHTMLDTD {
      * @return  Non zero count of intermediate nodes; 
      *          0 if unable to comply
      */ //----------------------------------------------------
-    virtual PRInt32 CreateContextMapBetween(PRInt32 aParent,PRInt32 aChild) const;
+    virtual ForwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const;
+
+    /** -------------------------------------------------------
+     * This method tries to design a context map (without actually
+     * changing our parser state) from the child up to the parent.
+     *
+     * @update	gess4/6/98
+     * @param   aParent -- tag type of parent
+     * @param   aChild -- tag type of child
+     * @return  Non zero count of intermediate nodes; 
+     *          0 if unable to comply
+     */ //----------------------------------------------------
+    virtual PRInt32 BackwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const;
 
 };
 
diff --git a/mozilla/parser/htmlparser/src/nsHTMLDTD.cpp b/mozilla/parser/htmlparser/src/nsHTMLDTD.cpp
index a15c89c4d16..ce31e0619cf 100644
--- a/mozilla/parser/htmlparser/src/nsHTMLDTD.cpp
+++ b/mozilla/parser/htmlparser/src/nsHTMLDTD.cpp
@@ -682,8 +682,22 @@ PRBool nsHTMLDTD::VerifyContextStack(eHTMLTags aStack[],PRInt32 aCount) const {
  * @return  Non zero count of intermediate nodes; 
  *          0 if unable to comply
  */ //----------------------------------------------------
-PRInt32 nsHTMLDTD::CreateContextMapBetween(PRInt32 aParent,PRInt32 aChild) const {
-  PRInt32 result=0;
+PRInt32 nsHTMLDTD::ForwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const{
+  int result=0;
   return result;
 }
 
+/** -------------------------------------------------------
+ * This method tries to design a context map (without actually
+ * changing our parser state) from the child up to the parent.
+ *
+ * @update	gess4/6/98
+ * @param   aParent -- tag type of parent
+ * @param   aChild -- tag type of child
+ * @return  Non zero count of intermediate nodes; 
+ *          0 if unable to comply
+ */ //----------------------------------------------------
+PRInt32 nsHTMLDTD::BackwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const{
+  int result=0;
+  return result;
+}
diff --git a/mozilla/parser/htmlparser/src/nsHTMLDTD.h b/mozilla/parser/htmlparser/src/nsHTMLDTD.h
index fc53ae6e9d1..6dc00d41456 100644
--- a/mozilla/parser/htmlparser/src/nsHTMLDTD.h
+++ b/mozilla/parser/htmlparser/src/nsHTMLDTD.h
@@ -138,7 +138,19 @@ class nsHTMLDTD : public nsIDTD {
      * @return  Non zero count of intermediate nodes; 
      *          0 if unable to comply
      */ //----------------------------------------------------
-    virtual PRInt32 CreateContextMapBetween(PRInt32 aParent,PRInt32 aChild) const;
+    virtual ForwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const;
+
+    /** -------------------------------------------------------
+     * This method tries to design a context map (without actually
+     * changing our parser state) from the child up to the parent.
+     *
+     * @update	gess4/6/98
+     * @param   aParent -- tag type of parent
+     * @param   aChild -- tag type of child
+     * @return  Non zero count of intermediate nodes; 
+     *          0 if unable to comply
+     */ //----------------------------------------------------
+    virtual BackwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const;
 
 };
 
diff --git a/mozilla/parser/htmlparser/src/nsIDTD.h b/mozilla/parser/htmlparser/src/nsIDTD.h
index 162d282ec46..ca85255cf40 100644
--- a/mozilla/parser/htmlparser/src/nsIDTD.h
+++ b/mozilla/parser/htmlparser/src/nsIDTD.h
@@ -104,7 +104,19 @@ class nsIDTD : public nsISupports {
      * @return  Non zero count of intermediate nodes; 
      *          0 if unable to comply
      */ //----------------------------------------------------
-    virtual PRInt32 CreateContextMapBetween(PRInt32 aParent,PRInt32 aChild) const=0;
+    virtual PRInt32 ForwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const=0;
+
+    /** -------------------------------------------------------
+     * This method tries to design a context map (without actually
+     * changing our parser state) from the child up to the parent.
+     *
+     * @update	gess4/6/98
+     * @param   aParent -- tag type of parent
+     * @param   aChild -- tag type of child
+     * @return  Non zero count of intermediate nodes; 
+     *          0 if unable to comply
+     */ //----------------------------------------------------
+    virtual PRInt32 BackwardPropagate(PRInt32 aVector[],PRInt32 aParent,PRInt32 aChild) const=0;
 
 };