// JavaScript Document

function Login() {
	var Email = document.getElementById('txtEmail');
	var Pass = document.getElementById('txtPass');
	CambiarEstilo(Email, 'login');
	CambiarEstilo(Pass, 'login');
	BorrarEspacios(Email);
	BorrarEspacios(Pass);	
	if (Email.value == "")
		CambiarEstilo(Email, 'errLogin');
	if (Pass.value == "")
		CambiarEstilo(Pass, 'errLogin');
	if ((Email.value != "") && (Pass.value != "")) {
		var data = "?txtEmail=" + Email.value + "&txtPass=" + Pass.value;
		var response = $.ajax({
			url: "lib/login.php" + data,
			async: false
		}).responseText;

		if (response == "1")
			window.location.reload();
		else {
			if (response == "2")
				alert('Cookies are currently disabled for your browser.\n Please activate them to use this site.');
			else
				alert('Incorrect access data. Try again.');
		}
	}
	else
		return false;
}

function Logout() {
	var response = $.ajax({
		url: "lib/logout.php",
		async: false
	}).responseText;
	if (response == "1")
		window.location.reload();
}

function BorrarEspacios(objeto) {
	var cadena = objeto.value;
	while (cadena.charAt(cadena.length - 1) == " ")
		cadena=cadena.substr(0, cadena.length - 1);
	while (cadena.charAt(0) == " ") 
		cadena=cadena.substr(1, cadena.length - 1);
	objeto.value = cadena;	
}

function CambiarEstilo(objeto, clase) { objeto.className = clase; }