[OpenLayers-Dev] Panning is disabled when viewing Googe Layers

[Malte]

Hi everybody,
I've got a problem when switching from OSM Mapnik to a Google Layer. If
Mapnik is activated panning and zooming works like a charm. But when I
switch to Google Layer only zooming works. Can somebody give me a hint, how
to solve this problem? Is the VectorLayer the cause?

function init() {
        map = new OpenLayers.Map ("map", {
        controls:[
                new OpenLayers.Control.Navigation(),
                new OpenLayers.Control.PanZoomBar(),
                new OpenLayers.Control.Attribution(),
                new OpenLayers.Control.LayerSwitcher()],
                maxExtent: new OpenLayers.Bounds(8.112,49.9312, 8.3262, 
50.0942),
                maxResolution: 156543.0399,
                numZoomLevels: 19,
                units: 'm',
                projection: new OpenLayers.Projection("EPSG:900913"),
                displayProjection: new OpenLayers.Projection("EPSG:4326")
        } );
                          
        vectorLayer = new OpenLayers.Layer.Vector(
                "POIs",
                {
                        styleMap: new OpenLayers.StyleMap({
                                // Set the external graphic and background 
graphic images.
                                externalGraphic: 
"http://openlayers.org/dev/img/marker-gold.png";,
                                backgroundGraphic:
"http://openlayers.org/dev/examples/marker_shadow.png";,
                                
                                // Makes sure the background graphic is placed 
correctly relative
                                // to the external graphic.
                                backgroundXOffset: 0,
                                backgroundYOffset: -7,
                                
                                // Set the z-indexes of both graphics to make 
sure the background
                                // graphics stay in the background (shadows on 
top of markers looks
                                // odd; let's not do that).
                                graphicZIndex: MARKER_Z_INDEX,
                                backgroundGraphicZIndex: SHADOW_Z_INDEX,
                                
                                pointRadius: 10
                        }),
                        isBaseLayer: false,
                        rendererOptions: {yOrdering: true}
                }
        )
        var layerMapnik = new OpenLayers.Layer.OSM.Mapnik("Mapnik");
        var layerTilesAtHome = new 
OpenLayers.Layer.OSM.Osmarender("Osmarender");
        var layerMapnik = new OpenLayers.Layer.OSM.Mapnik("Mapnik");
        var cycleattrib = 'OpenCycleMap.org - the  http://www.openstreetmap.org
OpenStreetMap  Cycle Map<br />'
                   + ' http://www.gravitystorm.co.uk/shine/cycle-info/ Key and 
More Info 
| Help | Stuff<br />'
                   + 'Created by  http://www.gravitystorm.co.uk Andy Allan  and 
Dave
Stubbs<br />'
                   + 'Sponsored by  http://www.cloudmade.com CloudMade  <br 
/>';                         
        var gphy = new OpenLayers.Layer.Google("Google Physical",{type:
G_PHYSICAL_MAP, sphericalMercator: true });
        var gmap = new OpenLayers.Layer.Google("Google Streets",{
sphericalMercator: true });
        var ghyb = new OpenLayers.Layer.Google("Google Hybrid",{type: 
G_HYBRID_MAP,
sphericalMercator: true });
        var gsat = new OpenLayers.Layer.Google("Google Satellite",{type:
G_SATELLITE_MAP, sphericalMercator: true });
        map.addLayers([layerMapnik, layerTilesAtHome, gphy, gmap, ghyb, gsat,
vectorLayer]);
        
        var sf = new OpenLayers.Control.SelectFeature(vectorLayer, {'onSelect':
popup});
    map.addControl(sf);
    sf.activate();
                                
        map.zoomToMaxExtent();
        
        var lonLat = new OpenLayers.LonLat(lon, lat).transform(new
OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
        map.setCenter (lonLat, zoom);
} 

Greetings,
Malte
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