var Twitts= null;
var indice_Twitts= 0;

    function linkify(string){
         string = string.replace(
         /((https?\:\/\/)|(www\.))(\S+)(\w{2,4})(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?/gi,
         function(url){
              var full_url = url;
              if (!full_url.match('^https?:\/\/')) {
              full_url = 'http://' + full_url;
         }
         return '<a target="_blank" href="' + full_url + '">' + url + '</a>';
         }
    );
    return string;
    }  

function obtenerTwitts(a){
    Twitts = a;
    refrescarTwits();

}

  function refrescarTwits(){
      if(Twitts){
        $('#Twitts').html(linkify(Twitts[indice_Twitts].text));
      }
    }

$(function(){

    $('#anterior').click(function(){
        indice_Twitts--;
        if(indice_Twitts < 0)
            indice_Twitts = Twitts.length-1;
        
        refrescarTwits();
    });
    
    $('#siguiente').click(function(){
        indice_Twitts++;
        
        if(indice_Twitts > Twitts.length -1)
            indice_Twitts= 0;
        
        refrescarTwits();
    });

    $('#Twitts').html('<img src="img/ajax-loader.gif" />');

    $.ajax({
      url: "http://twitter.com/status/user_timeline/ChevroletArg.json?count=&callback=?&",
      dataType: "jsonp",
      jsonpCallback: "obtenerTwitts"
    });
});