Post request bug

[gold killer]

Not submitting form

I'm abit new to ajax, one of my friends helped me with an ajax script for an old site, he is now on holiday so i cant ask him. I wanted to give editing it a shot to try and login, so i had to add another value and edit the parameters, now it doesnt seem to work.

The javascript is:

//Request
var http_request = getHTTPObject();
var url = "post_login.php?";

function getHTTPObject() {
  var xmlhttp = false;
if (window.XMLHttpRequest){
xmlhttp = new XMLHttpRequest();
}
else if (window.ActiveXObject){
try{
xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
} 
catch (e){
try{
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
catch (e){}
}
}

  return xmlhttp;
}


// Ajax 
   function makePOSTRequest(id) {

	  it = document.getElementById("username").value +
	  document.getElementById("password").value;
	  parameters = 'username=' + encodeURIComponent(it) + '&password=' + encodeURIComponent(it) + '&id=' + encodeURIComponent(id);
	  http_request.open('POST', url, true);
	  http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	  http_request.onreadystatechange = alertContents;
	  http_request.send(parameters);
   }

   function alertContents() {
	  if (http_request.readyState == 1) {
			document.getElementById('result').innerHTML = '<img src="loading.gif" />';			 
	  }
	  if (http_request.readyState == 4) {
			results = http_request.responseText;
			document.getElementById('result').innerHTML = results;			   
	  }
   };

The html im using is:

echo("
 Username:<br /> <input type=\"text\" name=\"username\" class=\"nav\" /><br />
Password:<br />
<input type=\"password\" name=\"password\" class=\"nav\" /><br />
<input type=\"button\" class=\"nav\" onclick=\"javascript: makePOSTRequest('".$profile[id]."')\" value=\"Login!\"><br />
<strong><a href=\"/index.php?y=register\">Not Registered?</a></strong>");

the .php page that the request should go to:

ob_start();
session_start();
include ("config.php");
$id = intval($_POST[id]);

$username = $_POST['username'];
$password = md5($_POST['password']);

$info = mysql_query("SELECT * FROM users WHERE username = '$username'") or die(mysql_error());
$data = mysql_fetch_array($info);
if($data[password] != $password)
{
echo "Incorrect username or password!";
}
else
{
setcookie("essex_id", $logged[id],time()+(62*60*23*10), "/", "");
setcookie("essex_pass", $logged[password],time()+(62*60*23*10), "/", "");
$_SESSION[essex_id] = $logged[id];
$_SESSION[essex_pass] = $logged[password];
}

when you press login nothing happens, no error but no login or failed login attempt so its not sending the data to the php page

Please can someone help me,

Thanks

ps, the script was working before with 1 request and no <form> tags!

 

[gold killer]

anyone able to help me?