Creating an Authentication Platform, POST between JQuery? - php

Question

Okay, so this is a proof of concept project that I want to do. I have one page that is checking for the authentication status though some sort of POST response in JQuery. Here's that code:
$('#submit').click(function(){
window.open('http://authorize.openauth.tk/','title', 'width=360, height=240');
return false;
$.ajax({
type: POST,
url: "http://authorize.openauth.tk/",
success: function(data){
if(data == '1'){
$('h1').fadeToggle(function(){
$('#authStat').css('color', 'green').html("Authenticated!");
$('h1').fadeToggle();
});
}
else{
$('h1').fadeToggle(function(){
$('#authStat').css('color', 'red').html("Not authenticated.");
$('h1').fadeToggle();
});
}}
});
});
When I click Login, it opens the login window, and that it. In Firebug, I don't see a POST request to "authorize.openauth.tk". Now, I know that the above code is NOT doing what I described. What code should I use? My main goal: Click a button, open a connection to a page, open that page in a separate window, and then having the page in the window report back to the main page.
Here's the code for "the page in the window":
var referrer = document.referrer;
$('#submit').click(function(){
$.ajax({
type: 'POST',
url: "auth.php",
data: $('form').serialize(),
success: function(data) {
if(data == "0"){
$('h1').html("Wrong Username/Password");
}
else{
$.post(referrer, data);
}
}
});
alert(referrer);
});