From ae0267198330f74accb7247739d8d848e1086310 Mon Sep 17 00:00:00 2001
From: crschmidt <crschmidt@crschmidt.net>
Date: Tue, 15 Aug 2006 16:11:58 +0000
Subject: [PATCH] Don't ever return NaN from getLayerContainerPxFromViewPortPx,
 since that can cause problems in multiple different layers -- instead, just
 return null, which is handled more gracefully.

git-svn-id: http://svn.openlayers.org/trunk/openlayers@1219 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
---
 lib/OpenLayers/Map.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/OpenLayers/Map.js b/lib/OpenLayers/Map.js
index 6c24bcae43..a9787a16ed 100644
--- a/lib/OpenLayers/Map.js
+++ b/lib/OpenLayers/Map.js
@@ -1008,7 +1008,10 @@ OpenLayers.Map.prototype = {
             var dY = -parseInt(this.layerContainerDiv.style.top);
             layerPx = viewPortPx.add(dX, dY);
         }
-        return layerPx;
+        if (!isNaN(layerPx.x) && !isNaN(layerPx.y)) {
+            return layerPx;
+        }
+        return null;
     },
     
   //