Show One WindowInfo Per Marker(Google Map) - google-maps-api-3

Question

I try this but I can only last windowInfo.
Help me please
function initialize() {
var mapOptions = {
zoom: 5,
center: new google.maps.LatLng(33.414837,54.68141),
mapTypeId: google.maps.MapTypeId.TERRAIN
};
var map = new google.maps.Map(document.getElementById('map'),mapOptions);
/*var weatherLayer = new google.maps.weather.WeatherLayer({
temperatureUnits: google.maps.weather.TemperatureUnit.Degree
});
weatherLayer.setMap(map);*/
/*var cloudLayer = new google.maps.weather.CloudLayer();
cloudLayer.setMap(map)*/
for (i = 0; i < StationListArray.length; i++) {
var image = StationListArray[i].split("|")[4];
var StationLocation = new google.maps.LatLng(StationListArray[i].split("|")[2], StationListArray[i].split("|")[1]);
var marker = new google.maps.Marker({
position: StationLocation,
map: map,
title: StationListArray[i].split("|")[0],
icon: image
});
google.maps.event.addListener(marker,'click',function() {
var infowindow = new google.maps.InfoWindow({
content:"Hello World!"});
infowindow.open(map,marker);
});
}
}
google.maps.event.addDomListener(window, 'load', initialize);

Answer 1

Change the 2nd argument of open() to this
infowindow.open(map,this);
marker refers to the variable marker, which will be overwritten on each iteration. When the loop has been finished, it points to the last marker that has been created. this inside the click-callback refers to the marker that has been clicked.