From 7cea45db7fac9c25ddf3d665c7a9e28dba6d38f4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fr=C3=A9d=C3=A9ric=20Junod?= <frederic.junod@camptocamp.com>
Date: Mon, 7 Mar 2011 11:31:51 +0000
Subject: [PATCH] don't crash if OpenLayers.Renderer.NG is not defined.
 r=crschmidt (closes #3152)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@11649 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
---
 lib/OpenLayers/Layer/Vector.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/OpenLayers/Layer/Vector.js b/lib/OpenLayers/Layer/Vector.js
index dbd00de9c2..d395d0e067 100644
--- a/lib/OpenLayers/Layer/Vector.js
+++ b/lib/OpenLayers/Layer/Vector.js
@@ -472,7 +472,7 @@ OpenLayers.Layer.Vector = OpenLayers.Class(OpenLayers.Layer, {
     moveTo: function(bounds, zoomChanged, dragging) {
         OpenLayers.Layer.prototype.moveTo.apply(this, arguments);
         
-        var ng = (this.renderer instanceof OpenLayers.Renderer.NG);
+        var ng = (OpenLayers.Renderer.NG && this.renderer instanceof OpenLayers.Renderer.NG);
         if (ng) {
             zoomChanged && this.renderer.updateDimensions();
         } else {
@@ -522,7 +522,7 @@ OpenLayers.Layer.Vector = OpenLayers.Class(OpenLayers.Layer, {
      * {Boolean} The layer was redrawn.
      */
     redraw: function() {
-        if (this.renderer instanceof OpenLayers.Renderer.NG) {
+        if (OpenLayers.Renderer.NG && this.renderer instanceof OpenLayers.Renderer.NG) {
             this.drawn = false;
         }
         return OpenLayers.Layer.prototype.redraw.apply(this, arguments);