var timestamps = [5093638680,135093638660];

function TimestampToDate(timestamps){
  var date = new Array();
  for(var t=0;t<timestamps.length;t++){
    var d = new Date(timestamps[t]);
    var day = (d.getDate() < 10 ? '0' : '') + d.getDate();
    var month = ((d.getMonth()+1) < 10 ? '0' : '') + (d.getMonth()+1);

    var convert_into_date = (day +'.'+ (month)+'.'+ d.getFullYear());
    date.push(convert_into_date);
  }
alert(date);
    //return date;
}

var a = TimestampToDate(timestamps);