TableView navigation

//create the window
var win1 = Ti.UI.createWindow(
	{
		backgroundColor:"#fff",
		title: "Concurso"
	}
);

//create navigation group
var navGroup = Titanium.UI.iPhone.createNavigationGroup(
	{
		window:win1
	}
);

// create the data  for the table
var usernames = [];
//insert TableViewRow with custom data
usernames[0] = Ti.UI.createTableViewRow({hasChild:true,title:'Tweets From Thanuz',user:'Thanuz'});
usernames[1] = Ti.UI.createTableViewRow({hasChild:true,title:'Tweets From Felgarciah',user:'Felgarciah'});
usernames[2] = Ti.UI.createTableViewRow({hasChild:true,title:'Tweets From Chroposnos',user:'Chroposnos'});
usernames[3] = Ti.UI.createTableViewRow({hasChild:true,title:'Tweets From Siedrix',user:'Siedrix'});
usernames[4] = Ti.UI.createTableViewRow({hasChild:true,title:'Tweets From hdgam3r',user:'hdgam3r'});

//This function receives an array in Json format and return a table view with that data
function getTableView(tweetData){
 	rowArray = [];
	Titanium.API.info(tweetData.length);
	for(i=0;i<tweetData.length;i++){
		rowArray[i] = Titanium.UI.createTableViewRow(
				{
					hasChild:false,
					height:'auto'
					}
		);
		rowArray[i].add(
			Titanium.UI.createLabel(
				{
					text:tweetData[i].text,
					height:'auto',
					width:'auto',
					textAlign:'left',
					left:0,
					top:10,
					touchEnabled:false,
					highlightedColor:'#9EC5F1'
				}
			)
		);
	}
	return Titanium.UI.createTableView({data:rowArray});
}

//this function receive a title and a table and returns a window with that elements added
function createWindow(title,table){
	
	var win2 = Titanium.UI.createWindow(
		{
			backgroundColor:"#000",
			title:title
		}
	);
	win2.add(table);
	return win2;
}
//receives a navigator and a window and push that view
function pushWindow(navigator,window){
	navigator.open(window);
}

//This function do a request to twitter api in order to getn 'count' number of tweets of the user 'username'
//with that data the function creates a window and push the view
function getTweet(username,count){
	var consumer = Titanium.Network.createHTTPClient();
	consumer.timeout=100000;
	Titanium.API.info(username);
	consumer.open('GET','http://api.twitter.com/1/statuses/user_timeline.json?screen_name='+username+'&count='+count);
	consumer.onload = function(){
		try{
			var messages = eval('('+this.responseText+')');
			var tableForTweets = getTableView(messages);
			var windowForTweets = createWindow('tweets',tableForTweets);
			pushWindow(navGroup,windowForTweets);
		}catch(Error){
			alert("Something weird ?!");
		}
	};
	consumer.send();
}

//create the table with the data that was defined
var tabla1 = Titanium.UI.createTableView({data:usernames});

tabla1.addEventListener('click',function(table){
		var user = table.rowData.user;
		getTweet(user,100);		
	}
);

win1.add(tabla1);
var main = Titanium.UI.createWindow();
main.add(navGroup);
main.open();