title: Google Maps v3 custom marker icon does not keep it's position on map
body: <p>Developing with Google Maps v3.</p>
  
  <p>For some sort of reason, my custom marker icon "change" it's position on zoom in-out. It looks like it have some sort of "padding" property, that not changes together with zoom.</p>
  
  <p>It means that it position is correct on maximum zoom (18), but if I change zoom value, it "moves" a bit to top, and it makes problem on smaller zoom values, because it looks like it is not on same position as it is.</p>
  
  <p>Marker is defined as:</p>
  
  <pre><code>var image = new google.maps.MarkerImage('img/antennas/img.png',new google.maps.Size(100, 100));
  </code></pre>
  
  <p>This maybe can help: marker icon is squared shape, 100x100px, and it's center is in middle of the image, not on the bottom like "normal" markers.</p>
  
  <p><strong>UPDATE:</strong> do I have to do something with anchor property? </p>