Display Google map using JavaScript

This small code is to display google map using JavaScript .

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Untitled Page</title>
    <meta http-equiv="content-type" content="text/html; charset=utf-8"/>
    <script src="http://maps.google.com/maps?file=api&amp;v=2&amp;  key=ABQIAAAAcl" type="text/javascript"></script>
   <script type="text/javascript">
function load()
{
      if (GBrowserIsCompatible()) {
         var point;
         var map=new GMap2(document.getElementById("map"));
         map.setCenter(new GLatLng(42.351505,71.094455), 5);
         map.addControl(new GOverviewMapControl());
         map.enableDoubleClickZoom();
         map.enableScrollWheelZoom();
         map.addControl(new GMapTypeControl());
         map.addControl(new GSmallMapControl());              
      }
}
</script>
</head>
<body onload="load();" onunload="GUnload()" style="background-color:Transparent">
<div id="map" style="width: 900px; height: 500px"></div>
</body>
</html>