diff --git a/Makefile b/Makefile
index c8c34b15a..9c218500a 100644
--- a/Makefile
+++ b/Makefile
@@ -154,9 +154,9 @@ clean:
 	-rm -f *.o kpdfview slider_watcher
 
 cleanthirdparty:
-	make -C $(LUADIR) clean
-	make -C $(MUPDFDIR) clean
-	#make -C $(CRENGINEDIR)/thirdparty/antiword clean
+	-make -C $(LUADIR) clean
+	-make -C $(MUPDFDIR) clean
+	-make -C $(CRENGINEDIR)/thirdparty/antiword clean
 	test -d $(CRENGINEDIR)/thirdparty/chmlib && make -C $(CRENGINEDIR)/thirdparty/chmlib clean || echo warn: chmlib folder not found
 	test -d $(CRENGINEDIR)/thirdparty/libpng && (make -C $(CRENGINEDIR)/thirdparty/libpng clean) || echo warn: chmlib folder not found
 	test -d $(CRENGINEDIR)/crengine && (make -C $(CRENGINEDIR)/crengine clean) || echo warn: chmlib folder not found
diff --git a/cre.cpp b/cre.cpp
index 7caae1caa..7a2e09503 100644
--- a/cre.cpp
+++ b/cre.cpp
@@ -117,6 +117,22 @@ static int getPageFromXPointer(lua_State *L) {
 	return 1;
 }
 
+static int getPosFromXPointer(lua_State *L) {
+	CreDocument *doc = (CreDocument*) luaL_checkudata(L, 1, "credocument");
+	const char *xpointer_str = luaL_checkstring(L, 2);
+
+	int pos = 0;
+	ldomXPointer xp = doc->dom_doc->createXPointer(lString16(xpointer_str));
+
+	lvPoint pt = xp.toPoint();
+	if (pt.y > 0) {
+		pos = pt.y;
+	}
+	lua_pushinteger(L, pos);
+
+	return 1;
+}
+
 static int getCurrentPos(lua_State *L) {
 	CreDocument *doc = (CreDocument*) luaL_checkudata(L, 1, "credocument");
 
@@ -125,21 +141,6 @@ static int getCurrentPos(lua_State *L) {
 	return 1;
 }
 
-//static int getPosFromXPointer(lua_State *L) {
-	//CreDocument *doc = (CreDocument*) luaL_checkudata(L, 1, "credocument");
-	//const char *xpointer_str = luaL_checkstring(L, 2);
-
-	//lvRect rc;
-	//int pos;
-
-	//ldomXPointer *xp = NULL;
-	//xp = doc->dom_doc->createXPointer(lString16(xpointer_str));
-	//getCursorDocRect(*xp, rc);
-	//pos = 
-
-	//return 1;
-//}
-
 static int getCurrentPercent(lua_State *L) {
 	CreDocument *doc = (CreDocument*) luaL_checkudata(L, 1, "credocument");
 
@@ -437,6 +438,7 @@ static const struct luaL_Reg credocument_meth[] = {
 	{"getPages", getNumberOfPages},
 	{"getCurrentPage", getCurrentPage},
 	{"getPageFromXPointer", getPageFromXPointer},
+	{"getPosFromXPointer", getPosFromXPointer},
 	{"getCurrentPos", getCurrentPos},
 	{"getCurrentPercent", getCurrentPercent},
 	{"getXPointer", getXPointer},
diff --git a/crereader.lua b/crereader.lua
index 9f48b7c9e..213997dc4 100644
--- a/crereader.lua
+++ b/crereader.lua
@@ -271,6 +271,32 @@ end
 ----------------------------------------------------
 -- bookmarks related methods
 ----------------------------------------------------
+function CREReader:isBookmarkInSequence(a, b)
+	return self.doc:getPosFromXPointer(a.page) < self.doc:getPosFromXPointer(b.page)
+end
+
+function CREReader:nextBookMarkedPage()
+	for k,v in ipairs(self.bookmarks) do
+		if self.pos < self.doc:getPosFromXPointer(v.page) then
+			return v
+		end
+	end
+	return nil
+end
+
+function CREReader:prevBookMarkedPage()
+	local pre_item = nil
+	for k,v in ipairs(self.bookmarks) do
+		if self.pos <= self.doc:getPosFromXPointer(v) then
+			if self.doc:getPosFromXPointer(pre_item) < self.pos then
+				return pre_item
+			end
+		end
+		pre_item = v
+	end
+	return nil
+end
+
 function CREReader:showBookMarks()
 	local menu_items = {}
 	-- build menu items
diff --git a/kpvcrlib/crengine b/kpvcrlib/crengine
index 998821344..b62d054cc 160000
--- a/kpvcrlib/crengine
+++ b/kpvcrlib/crengine
@@ -1 +1 @@
-Subproject commit 99882134490b47ebb28107cebfbeb8eafb070f54
+Subproject commit b62d054cca57366bc1ba2fa249c5bbf5c5234346
diff --git a/unireader.lua b/unireader.lua
index feb39f167..f730ab3e4 100644
--- a/unireader.lua
+++ b/unireader.lua
@@ -1447,6 +1447,10 @@ function UniReader:delJump(pageno)
 	end
 end
 
+function UniReader:isBookmarkInSequence(a, b)
+	return a.page < b.page
+end
+
 -- return nil if page already marked
 -- otherwise, return true
 function UniReader:addBookmark(pageno)
@@ -1466,6 +1470,9 @@ function UniReader:addBookmark(pageno)
 		notes = notes,
 	}
 	table.insert(self.bookmarks, mark_item)
+	table.sort(self.bookmarks, function(a,b)
+		return self:isBookmarkInSequence(a, b)
+	end)
 	return true
 end
 
@@ -1730,6 +1737,28 @@ function UniReader:showBookMarks()
 	end
 end
 
+function UniReader:nextBookMarkedPage()
+	for k,v in ipairs(self.bookmarks) do
+		if self.pageno < v.page then
+			return v
+		end
+	end
+	return nil
+end
+
+function UniReader:prevBookMarkedPage()
+	local pre_item = nil
+	for k,v in ipairs(self.bookmarks) do
+		if self.pageno <= v.page then
+			if pre_item.page < self.pageno then
+				return pre_item
+			end
+		end
+		pre_item = v
+	end
+	return nil
+end
+
 function UniReader:showHighLight()
 	local menu_items = {}
 	local highlight_dict = {}