document.getElementById('btfilelog').addEventListener('change', function (e) {
        var file = document.getElementById('btfilelog').files[0];
        var reader = new FileReader();
        reader.onload = function (evt) {
            var filebuf = evt.target.result;
            document.getElementById('imglogo').src = filebuf;
        }
        reader.readAsDataURL(file);
    });

        var m = '"name": "text1"'
            + ', "img": "'+document.getElementById('imglogo').src+'"'
            + ', "array": [{"a":"1"},{"a":"2"}]';

        $.ajax({
            type: "POST",
            url: "http://sibstro.ru/anketa_mod.php",
            data: "?&prog=1&mas={" + m + "}",
            dataType: "text",
            success: function (data) {
                $('#rez').html(data);
            },
            failure: function (errMsg) {
                alert(errMsg);
            }
        });

    $sjsonmas = $_POST['mas'];
    $jsonMAS = json_decode($sjsonmas);

    $s_name = mysql_real_escape_string(iconv("utf-8", "windows-1251", $jsonMAS->{'name'}));
    $s_img = file_get_contents($s_img);

    $fp = fopen("img.png", "w");
    fwrite($fp, $s_img);
    fclose($fp);