var thisEarth = this;
var ajax = new XMLHttpRequest();
ajax.onreadystatechange = function () {
    if (this.readyState == 4) {

        var style = '<style type="text/css">';
        style += '#SEA { fill:' + thisEarth.options.mapSeaColor + '; }';
        style += 'path { fill:' + thisEarth.options.mapLandColor + '; ';
        style +=
            'stroke:' +
            (thisEarth.options.mapBorderColor
                ? thisEarth.options.mapBorderColor
                : thisEarth.options.mapLandColor) +
            '; ';
        style +=
            'stroke-width:' +
            thisEarth.options.mapBorderWidth +
            '; stroke-miterlimit:1; }';
        style += thisEarth.options.mapStyles;
        style += '</style>';

        svg = Earth.fixSvgNamespace(this.responseText).replace(/(<svg[^>]+>)/i, '$1 ' + style);
        thisEarth.mapSvg = svg

        thisEarth.loadTexture(!0, !1);
    }
};
ajax.open('GET', this.options.mapImage, !0);
ajax.send();