making pink tiles a css matter. p=rdewit, r=me (closes #2318)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@9758 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

tests/manual/ve-opacity.html

@@ -8,7 +8,7 @@
         }
     </style>
 
-    <script src='http://dev.virtualearth.net/mapcontrol/v3/mapcontrol.js'></script>
+    <script src="http://dev.virtualearth.net/mapcontrol/mapcontrol.ashx?v=6.1"></script>
 
     <script src="../../lib/OpenLayers.js"></script>
     <script type="text/javascript">
@@ -16,9 +16,8 @@
         // make map available for easy debugging
         var map;
 
-        // avoid pink tiles
+        // increase reload attempts 
         OpenLayers.IMAGE_RELOAD_ATTEMPTS = 3;
-        OpenLayers.Util.onImageLoadErrorColor = "transparent";
 
         function init(){
             var options = {