VBDAPI

<html>
<head>
<script type="text/javascript" src="http://www.vietbando.com/maps/API/VBDMapAPI.js?key=e7vjH+pgQHuSyV75dwG6hq0WQek+cVqm"></script>
<script type="text/javascript">
function MyOverlay(latlng, img)
{
  this.latlng = latlng;
  this.img = img;

  this.initialize = initialize;
  this.remove = remove;
  this.copy = copy;
  this.redraw = redraw;
  this.vType = vType;

  function initialize(map)
  {
      var myDiv = document.createElement("div");
      myDiv.id = map.id + "MyOverlay";
      myDiv.style.border = "1px solid #ff0000";
      myDiv.style.position = "absolute";
      myDiv.innerHTML = "<img src='" + this.img + "'/>";
      map.getOverlayContainer().appendChild(myDiv);
      this.mapObj = map;
      this.divObj = myDiv;
      this.redraw();
  }

  function remove()
  {
      this.divObj.parentNode.removeChild(this.divObj);
  }

  function copy()
  {
      return new MyOverlay(this.latlng, this.img);
  }

  function redraw()
  {
      var pt = this.mapObj.fromLatLngToDivPixel(this.latlng);
      this.divObj.style.left = pt.x + "px";
      this.divObj.style.top = pt.y + "px";
  }

  function vType()
  {
      return 'MyOverlay';
  }
}
MyOverlay.prototype = new VOverlay();

function loadMap()
{
  if (VBrowserIsCompatible())
  {
     var map = new VMap(document.getElementById('container'));
     map.setCenter(new VLatLng(10.8152328, 106.680505), 4);
     map.addControl(new VScaleControl());
     map.addOverlay(new MyOverlay(new VLatLng(10.9233664, 106.475620), "http://www.vietbando.com/api/images/logo.gif"));
  }
}
</script>
</head>
<body onload="loadMap()">
<div id="container" style="height:500px; position:relative; margin:10px; border:1px #b1c4d5 solid;"></div>
</body>
</html>