/* Copyright(C) 2005 Salvatore Sanfilippo <antirez@gmail.com>
 * All Rights Reserved. */

var req = null;

function tryLogin() {
	clearFields(new Array("username","pass"));
	if (!validate(document.f.username.value, "^[A-z0-9]+$", "Username non valido","username")){
		return false;
	}
	if (!validate(document.f.pass.value, "^.{5,}$", "Password non valida","pass")){
		return false;
	}
	// Use AJAX to check if the user/password are valid.
	req = CreateXmlHttpReq(loginHandler);
	req.open("GET", "/ajax/login.php?username="+document.f.username.value+"&pass="+document.f.pass.value+"&rememberme="+(document.f.rememberme.checked?'1':'0')+"&rand="+escape(Math.random()));
	req.send(null);
}

function loginHandler() {
    if (req.readyState == 4 && req.status == 200) {
        var res = req.responseText;
        if (res.indexOf("OK:") != -1) {
            // Login success.
	    var l = window.location.toString();
            var i = l.indexOf("?uri=");
            if (i == -1) {
	    	if(document.f.login_type.value=='header'){
			window.location.reload();
			return true;
		}
                window.location = '/';
            } else {
                i+=5;
                l = unescape(l.substring(i,l.length+1));
		window.location = l;
            }
        } else {
            // Login failed. Show an error.
            warnField("username");
            warnField("pass");
		alert('Username e password digitata non coincidono con alcun utente registrato. Ti preghiamo di controllare che i dati inseriti siano corretti e riprovare.');
        }
    }
}

focusTarget = "document.f.username";