function prettyDate(time){
        var date = new Date(time),
        diff = (((new Date()).getTime() - date.getTime()) / 1000),
        day_diff = Math.floor(diff / 86400);
        
        if(day_diff < 0) day_diff = 0;
        
        if ( isNaN(day_diff))
            return;
        return day_diff == 0 && (
        diff <60 && "Ahora mismo" ||
            diff <120 && "Hace 1 minuto" ||
            diff <3600 && "Hace " + Math.floor( diff / 60 ) + " minutos" ||
            diff <7200 && "Hace 1 hora" ||
            diff <86400 && "Hace " + Math.floor( diff / 3600 ) + " horas") ||
            day_diff == 1 && "Ayer" ||
            day_diff <7 && "Hace " + day_diff + " días" ||
            day_diff >= 7 && "Hace " + Math.ceil( day_diff / 7 ) + " semanas";
    }

    function addContent(divName, content) {
        var newdiv = document.createElement('div');
        newdiv.setAttribute('style', 'padding-top:8px; padding-bottom:0px; margin-bottom:0px');
        newdiv.innerHTML = content;        
        var container = document.getElementById(divName);
        container.appendChild(newdiv);

    }