var files = ["report-adgroup-273-jq.json",
                 "report-adgroup-273-raw-processed-jq.json"];
    var datas = {};
    var filesLeft = files.length;
    files.forEach(function(file) {
        $.getJSON(file, {}, function(d) {
            datas[file] = d;
            filesLeft -= 1;
            if (filesLeft == 0) {
                drawReport(datas);
            }
        });
    });