Get data from webpage

Hello everyone,

ive made a small piece of code in titanium to get data from a webpage. But when i run the application and press the button that will trigger the function it doesn't show the data.

Can someone explain to me what i am doeing wrong, and why i did it wrong?

This is my code:

// include needed files Ti.include('responsive.js'); //Ti.include('http_connection.js');

//Create the screen

//The home screen var homeWindow = Ti.UI.createWindow({ exitOnClose: true, fullscreen: false, title: 'Advanced' });

var homeView = Ti.UI.createView({ backgroundColor: 'white' });

var homeLabel = Ti.UI.createLabel({ top: 20, left: 30, height: 30, text: 'Test text', color: 'black', font: {fontSize: 18} });

var testButton1 = Ti.UI.createButton({ title: 'test', backgroundColor: 'red', top: 55, left: per10, width:per60, height: 30, color: 'black', font: {fontSize: 14} });

var testButton2 = Ti.UI.createButton({ title: 'test2', backgroundColor: 'blue', top: 95, left: per10, width:per60, height: 30, color: 'black', font: {fontSize: 14} });

testButton2.addEventListener('click',function(e){ Ti.API.info("Button Clicked"); http_con(); Ti.API.info("Button Clicked 2"); //alert('test'); });

function http_con() { Ti.API.info('hya');

//Database connection
var http_client = Ti.Network.createHTTPClient();
http_client.open('POST', 'http://rdbomers-hp:89/ceres');

//If variables has been send
http_client.onload = function() {
    Ti.API.info('subjects: ' + this.responseText);
    callback(this.responseText);
};

//If there is an error
http_client.onerror = function(e) {
    Ti.API.info('error: ' + JSON.stringify(e));
};

};

//Creating the application //Home screen homeWindow.add(homeView); homeView.add(homeLabel); homeView.add(testButton1); homeView.add(testButton2); homeWindow.open();

I have put thi Ti.API.info('hya') in the function to check if it gets there, it shows the HYA, but i want it to show the content of the webpage.