Get and format tweets

gistfile1.js

getTweets = function(alvo, usuario, qtdMensagens){
    	var o = {}
    	
    	o.qtdMensagens = qtdMensagens;
    	o.caixaTwitter = $("#" + alvo);
    		
    	o.caixaTwitter.append("<li><a href='#'>carregando tweets...</a></li>");
    	
    	$.jTwitter(usuario, o.qtdMensagens, function(data){
    	
    		o.caixaTwitter.empty();    		
    		o.list = '';
    		
            $.each(data, function(i, post){
            	o.hora = H(post.created_at);
            	o.texto = formatTwitString(post.text);
            	
            	o.list += '<li>' + o.texto + "<span class='hora'>" + o.hora + '</span></li>';
            });	
            
            o.caixaTwitter.append(o.list);
            
        });
    }
    
    formatTwitString = function(str){
	    str=' '+str;
	    str = str.replace(/((ftp|https?):\/\/([-\w\.]+)+(:\d+)?(\/([\w/_\.]*(\?\S+)?)?)?)/gm,'<a href="$1" target="_blank">$1</a>');
	    str = str.replace(/([^\w])\@([\w\-]+)/gm,'$1@<a href="http://twitter.com/$2" target="_blank">$2</a>');
	    str = str.replace(/([^\w])\#([\w\-]+)/gm,'$1<a href="http://twitter.com/search?q=%23$2" target="_blank">#$2</a>');
	    return str;
    }
    
    // from http://widgets.twimg.com/j/1/widget.js
    var K = function () {
        var a = navigator.userAgent;
        return {
            ie: a.match(/MSIE\s([^;]*)/)
        }
    }();
     
    var H = function (a) {
        var b = new Date();
        var c = new Date(a);
        if (K.ie) {
            c = Date.parse(a.replace(/( \+)/, ' UTC$1'))
        }
        var d = b - c;
        var e = 1000,
            minute = e * 60,
            hour = minute * 60,
            day = hour * 24,
            week = day * 7;
        if (isNaN(d) || d < 0) {
            return ""
        }
        if (d < e * 7) {
            return "agora pouco"
        }
        if (d < minute) {
            return Math.floor(d / e) + " segundos atr&aacute;s"
        }
        if (d < minute * 2) {
            return "h&aacute; 1 minuto"
        }
        if (d < hour) {
            return "h&aacute; " + Math.floor(d / minute) + " minutos"
        }
        if (d < hour * 2) {
            return "h&aacute; 1 hora"
        }
        if (d < day) {
            return "h&aacute; " + Math.floor(d / hour) + " horas atr&aacute;s"
        }
        if (d > day && d < day * 2) {
            return "ontem"
        }
        if (d < day * 365) {
            return "h&aacute; " + Math.floor(d / day) + " dias"
        } else {
            return "h&aacute; mais de 1 ano"
        }
    };