Using interactive events on the map

HTML

<script src="http://www.ammap.com/lib/ammap.js" type="text/javascript"></script>
<script src="http://www.ammap.com/lib/maps/js/worldLow.js" type="text/javascript"></script>
<div id="mapdiv" style="width: 100%; height: 370px;"></div>

JavaScript

var map;

AmCharts.ready(function() {
    map = new AmCharts.AmMap();
    map.pathToImages = "http://www.ammap.com/lib/images/";
    //map.panEventsEnabled = true; // this line enables pinch-zooming and dragging on touch devices
    var dataProvider = {
        mapVar: AmCharts.maps.worldLow,
        zoomLevel: 3.5,
        zoomLongitude: 10,
        zoomLatitude: 52
    };

    map.areasSettings = {
        unlistedAreasColor: "#DDDDDD",
        rollOverOutlineColor: "#FFFFFF",
        rollOverColor: "#CC0000",
        balloonText: "[[title]] joined EU at [[customData]]"
    };

    dataProvider.areas = [
        {
        title: "Austria",
        id: "AT",
        color: "#3366CC",
        customData: "1995",
        groupId: "before2004"},
    {
        title: "Ireland",
        id: "IE",
        color: "#3366CC",
        customData: "1973",
        groupId: "before2004"},
    {
        title: "Denmark",
        id: "DK",
        color: "#3366CC",
        customData: "1973",
        groupId: "before2004"},
    {
        title: "Finland",
        id: "FI",
        color: "#3366CC",
        customData: "1995",
        groupId: "before2004"},
    {
        title: "Sweden",
        id: "SE",
        color: "#3366CC",
        customData: "1995",
        groupId: "before2004"},
    {
        title: "Great Britain",
        id: "GB",
        color: "#3366CC",
        customData: "1973",
        groupId: "before2004"},
    {
        title: "Italy",
        id: "IT",
        color: "#3366CC",
        customData: "1957",
        groupId: "before2004"},
    {
        title: "France",
        id: "FR",
        color: "#3366CC",
        customData: "1957",
        groupId: "before2004"},
    {
        title: "Spain",
        id: "ES",
        color: "#3366CC",
        customData: "1986",
        groupId: "before2004"},
    {
        title: "Greece",
        id: "GR",
        color: "#3366CC",
        customData: "1981",
        groupId: "before2004"},
    {
        title:...