//Create a variable that will contain a map
    var map;
    function createMap(mapData)
    {
        if (map) map.dispose();
        var mapContent = document.getElementById("map-content");
        //get the JSON settings of the map
        var settings = JSON.parse(mapData);
        //determine a topobase
        settings.MapChart.Topobase = "MapData/topobase/SVG/Russia.svg";
        settings.MapChart.ParentNode = "map";
        //path to the folder with images
        settings.MapChart.ImagePath = "PP_img/";
        //create a map
        map = new PP.MapChart(settings.MapChart ? settings.MapChart : settings);
        window.onresize();
    }
    //request to get the file with JSON settings of the map
    var Request = new PP.Ajax(
    {
        Url: "MapData/MapData_russia.xml?d=" + (new Date).toTimeString(),
        Success: function (sender, args)
        {
            createMap(args.ResponseText);
            Request.dispose();
        }
    });
    Request.send();
    //Function to update map sizes	
    function updateSize()
    {
        if (map)
        {
            map.setHeight(document.documentElement.clientHeight - 60);
            map.setWidth(document.documentElement.clientWidth);
        }
    }
    var idTime;
    //function to set map sizes according to window sizes
    window.onresize = function ()
    {
        if (idTime) clearTimeout(idTime);
        idTime = setTimeout(updateSize, 100);
    }