function checkLogin(url,login,pass)
{
	$.post(url, {username:login, password:pass}, check)
}

function check(data) {
	if (data == 'ERR'){
		$('#login_error').fadeIn(500);
		return false;
	} else {
		$('#user_area').html(data);
		return true;
	}
}

function logout()
{
	$.post('/ajax/logout', {}, succ)
}

function succ(data)
{
	$('#user_area').html(data);
}