function formatUnixtimestamp (unixtimestamp){
        var unixtimestamp = new Date(unixtimestamp*1000);
        var year = 1900 + unixtimestamp.getYear();
        var month = "0" + (unixtimestamp.getMonth() + 1);
        var date = "0" + unixtimestamp.getDate();
        var hour = "0" + unixtimestamp.getHours();
        var minute = "0" + unixtimestamp.getMinutes();
        var second = "0" + unixtimestamp.getSeconds();
        return year + "-" + month.substring(month.length-2, month.length)  + "-" + date.substring(date.length-2, date.length)
            + " " + hour.substring(hour.length-2, hour.length) + ":"
            + minute.substring(minute.length-2, minute.length) + ":"
            + second.substring(second.length-2, second.length);
 }