Добавить данные из формы в базу данных, используя AJAX.

function createObject() {
var request_type;
var browser = navigator.appName;
if(browser == "Microsoft Internet Explorer"){
request_type = new ActiveXObject("Microsoft.XMLHTTP");
}else{
request_type = new XMLHttpRequest();
}
return request_type;
}
var http = createObject();
 
/* -------------------------- */
/* INSERT */
/* -------------------------- */
/* Required: var nocache is a random number to add to request. This value solve an Internet Explorer cache issue */
var nocache = 0;
function insert() {
 // Optional: Show a waiting message in the layer with ID login_response
 document.getElementById('insert_response').innerHTML = "Just a second..."
 // Required: verify that all fileds is not empty. Use encodeURI() to solve some issues about character encoding.
////var site_url= encodeURI(document.getElementById('site_url').value);
////var site_name = encodeURI(document.getElementById('site_name').value);
var aaa= encodeURI(document.getElementById('aaa').value);
var bbb= encodeURI(document.getElementById('bbb').value);
 // Set te random number to add to URL request
nocache = Math.random();
 // Pass the login variables like URL variable
http.open('get', 'ins.php?aaa='+aaa+'&bbb=' +bbb+'&nocache = '+nocache);
http.onreadystatechange = insertReply;
http.send(null);
}
function insertReply() {
if(http.readyState == 4){ 
var response = http.responseText;
// else if login is ok show a message: "Site added+ site URL".
document.getElementById('insert_response').innerHTML = 'Действие успешное!';
 }
 }

http.open('get', 'ins.php?aaa='+aaa+'&bbb=' +bbb+'&nocache = '+nocache);

var net_i2= encodeURI(document.getElementsByClassName('nnn')[i].value);