ajax help

Hello i need to now how to make ajax function that submit the date into a database here what my script look like.


if (window.XMLHttpRequest) {
var http = new XMLHttpRequest();
}
else {
var http = new ActiveXObject("Microsoft.XMLHTTP");
}

function refresh() {
http.onreadystatechange = function() {
if(http.readyState == 4 && http.status == 200) {
document.getElementById("Show").innerHTML = http.responseText;
}
}
http.open('GET', 'Chatroom_show.php', true);
http.send();
}
function page(num) {
http.onreadystatechange = function() {
if(http.readyState == 4 && http.status == 200) {
document.getElementById('Show').innerHTML = http.responseText;
}
}
http.open('GET', 'Chatroom_show.php?page='+num, true);
http.send();
}
function changepage(div,num) {
if (window.XMLHttpRequest) {
var http = new XMLHttpRequest();
}
else {
var http = new ActiveXObject("Microsoft.XMLHTTP");
}
http.onreadystatechange = function() {
if(http.readyState == 4 && http.status == 200) {
document.getElementById(div).innerHTML = http.responseText;
}
}
http.open('GET', '?Chatroom_show.php='+num, true);
http.send();
}


function Blogs(num,user) {
http.onreadystatechange = function() {
if(http.readyState == 4 && http.status == 200) {
document.getElementById('Show').innerHTML = http.responseText;
}
}
http.open('GET', 'show_blog.php?page='+num+'&username,='+username, true);
http.send();
}

function Profile(url) {
http.onreadystatechange = function() {
if(http.readyState == 4 && http.status == 200) {
document.getElementById("Show").innerHTML = http.responseText;
}
}
http.open('GET', url, true);
http.send();
}

function Post_comment(num) {
http.onreadystatechange = function() {
if(http.readyState == 4 && http.status == 200) {
document.getElementById("Show_comment"+num).innerHTML = http.responseText;
}
}
http.open('POST', 'Chatroom_like.php?id='+num, true);
http.send();
}

II make a input filed it just how do i put data into database like dsipaint

A true developer

Lock please i was doing Get post it was POST",chatroom_post.php

A true developer

Glad to see self-resolved problems.

Catch my drift.