/* ---------------------------- */
/* XMLHTTPRequest Enable */
/* ---------------------------- */
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();

/* -------------------------- */
/* LOGIN */
/* -------------------------- */
/* Required: var nocache is a random number to add to request. This value solve an Internet Explorer cache issue */
var nocache = 0;
function login() {
// Optional: Show a waiting message in the layer with ID ajax_response
$('#login_response').html('<CENTER><table border="0"><tr><td><img src="http://www.skillzstudio.lt/images/ajax-loader3.gif" /></td><td>&nbsp;Kraunama...</td><tr></table></CENTER>');
// Required: verify that all fileds is not empty. Use encodeURI() to solve some issues about character encoding.
var email = encodeURI($('#user_login').val());
var psw = encodeURI($('#user_psw').val());
// Set te random number to add to URL request
nocache = Math.random();
// Pass the login variables like URL variable
http.open('get', 'http://www.skillzstudio.lt/login.php?login='+email+'&psw='+psw+'&nocache = '+nocache);
http.onreadystatechange = loginReply;
http.send(null);
}
function loginReply() {
	if(http.readyState == 4){
		var response = http.responseText;
		$('#login_form').hide();
		$('#login_response').show();
		if(response == 0){
			// if login fails
			//document.getElementById('login_response').innerHTML = 'Login failed! Verify user and password';
			// else if login is ok show a message: "Welcome + the user name".
		} else {
			$('#login_response').html(response);
			//document.getElementById('login_response').innerHTML = response;
		}
	}
}

function logOut() {
	$('#login_response').hide();
	$('#login_response').html("")
	$('#user_login').val("");
	$('#user_psw').val("");
	$('#login_form').show();
}