Adding an info window forms a integral part in the places where some note has to be placed , so inorder to use that inside Google maps this post will aid you !!!
<html>
<head>
<script type="text/javascript"
src="../jquery/jquery-1.4.4.min.js"></script>
<script src="http://maps.google.com/maps/api/js?sensor=false"
type="text/javascript"></script>
<script type="text/javascript"
src="../gmap3.js"></script>
<style>
.gmap3{margin: 20px auto;border: 1px dashed
#C0C0C0;width: 500px;height: 250px;}
</style>
<script type="text/javascript">
$(function(){
$('#test1').gmap3({
action: 'addInfoWindow',
address: "Coimbatore,India",
map:{
center: true,
zoom: 14
},
infowindow:{
options:{
size: new
google.maps.Size(50,50),
content: 'Hello World !'
},
events:{
closeclick: function(infowindow){
alert('closing : ' + $(this).attr('id') + ' : ' +
infowindow.getContent());
}
},
apply:[
{action:'setContent', args:['Here is a new
content !']}
]
}
},
{action: 'setOptions', args:[{scrollwheel:true}]}
);
});
</script>
</head>
<body>
<div id="test1"
class="gmap3"></div>
</body>
</html>
