[OpenLayers-Users] Help with OpenLayer + Google Maps

[hekuran S. Doli]

I'm using google map as layer in openlayer. I'm trying to add an point in the map as in example http://www.logisticsplus-ks.com/testmap/. I'm successfully adding the point in the map but when I move the map the point changes the position. So it does not stay at the coordinates that I give it. 

By the way the functions works perfectly with openstreet map, but not with google maps. 

In the following is the code that I'm using: 

<script type="text/javascript"> 
var map; 



function init() { 
map = new OpenLayers.Map('map'); 
map.addControl(new OpenLayers.Control.LayerSwitcher()); 

var gmap = new OpenLayers.Layer.Google( 
"Google Streets", // the default 
{numZoomLevels: 20} 
); 

map.addLayers([gmap]); 

map.setCenter(new OpenLayers.LonLat(21.159739, 42.656138), 10); 
} 
var featurecollection = {"type":"Feature", "id":"OpenLayers.Feature.Vector_173", "properties":{}, "geometry":{"type":"Point", "coordinates":[21.159739, 42.656138]}}; 
function addGeoJson() { 
var geojson_format = new OpenLayers.Format.GeoJSON(); 
var vector_layer = new OpenLayers.Layer.Vector(); 
map.addLayer(vector_layer); 
//vector_layer.addFeatures(geojson_format.read(featurecollection)); 
vector_layer.addFeatures(geojson_format.read(featurecollection)); 
} 
</script> 

Any help would be appreciable. 
Thanks in advance, 
Hekuran 


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