plot multiple points on google map

Please refer from below code:

function getBuildingsCoordinates(buildingAddressAll)
{
var j=0;//Counter for call back.
var geocoder=new google.maps.Geocoder();//Creating Object.
var tempArray = new Array();//Array holds the all building details with special characters temporary.
//This block is for multiple building
if(buildingAddressAll!=null)
{
tempArray = buildingAddressAll.split('~');//Getting all building details in array.
for (var i = 0; i < tempArray.length; i++)//Loop for getting coordinates one by one of every building.
{
var ArrAddress=new Array();//Holds all building addresses.
var tempVar=tempArray[i];
buildingInfo=tempVar.split('###');//Object that holds the info of single building.
buildingInfoAll[i]=buildingInfo;/*Created a nested array.Each nested array contains information[kioskID,buildingID,
buildingType,buildingAddress,buildingName,buildingLatLng]of individual building.*/
ArrAddress[i] = buildingInfo[3];
var myaddress=ArrAddress[i];//This attribute hold the address of building from array of multiple building address.
posn = myaddress.indexOf("%20");//Removing space from address
while (posn > -1)//while there is a %20
{
myaddress = myaddress.substring(0,posn) + " " + myaddress.substring(posn+3);
posn = myaddress.indexOf("%20");//find next %20
};

if(!myaddress)
{
alert('Address not found for building: '+buildingInfoAll[i][4]);
}
else
{
geocoder.geocode( { 'address': myaddress}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK)
{
buildingInfoAll[j].push(results[0].geometry.location);//Collecting address co-ordinates.
j++;
if(ArrAddress.length == j)
{
initialize(buildingInfoAll);//Initializing map when all co-ordinates for buildings are collected.
}
}
else
{
alert('Geocode was not successful for Building '+buildingInfoAll[i][4]+' due to: ' + status);
}
});
}
}
}

In the above code I am finding all the latitude and longitude and holding in buildingInfoAll array once all the co-ordinates you got a call back function called which calls intialize method by passing this array i.e. buildingInfoAll.

function initialize(buildingInfoAll) {

// Now extract the co-ordinates from the buildingInfoAll array and pass it to myLatLng. Below its given hard coded.

var myLatlng = new google.maps.LatLng(-25.363882,131.044922);
var mapOptions = {
zoom: 4,
center: myLatlng
}
var map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);

var marker = new google.maps.Marker({
position: myLatlng,
map: map,
title: 'Hello World!'
});
}

google.maps.event.addDomListener(window, 'load', initialize);