var showingLoggedIn = false;
var messageElement = false;
var messageP = false;

// focusField method: called when username and password gain focus
function focusField()
{
	try {
		if (messageElement != false)
		{
			document.getElementById('message').removeChild(messageElement);
		}
		getSeed();
	}
	catch (e)
	{ } // do nothing... hides an apparent firefox bug: https://bugzilla.mozilla.org/show_bug.cgi?id=236791
}

// blurField method: called when username and password are blurred
function blurField()
{
	try {
		validateLogin();
	}
	catch (e)
	{ } // hide bug https://bugzilla.mozilla.org/show_bug.cgi?id=236791
}

// showLogin method: displays if necessariy that we are logged in
function showLogin() {
	if (messageElement != false)
	{
		try {
			document.getElementById('message').removeChild(messageElement);
		}
		catch (e) { }
	}
	if (loggedIn)
	{
		messageElement = document.createElement('strong');
		messageElement.appendChild(document.createTextNode(' ' + messages));
		messageElement.style.color = 'green';
		document.getElementById('message').appendChild(messageElement);
		
	}
	else
	{
		messageElement = document.createElement('strong');
		messageElement.appendChild(document.createTextNode(' ' + messages));
		messageElement.style.color = '#ff0000';
		document.getElementById('message').appendChild(messageElement);
	}
}
function kdo(e){
	if(e.keyCode == 13) blurField();
}

// setupLogin method: to be called on page load, sets up the login script
function setupLogin()
{
	username = document.getElementById('username');
	password = document.getElementById('password');
	addEvent(username, 'focus', focusField);
	addEvent(username, 'blur', blurField);
	addEvent(username, 'keydown' , kdo);
	addEvent(password, 'focus', focusField);
	addEvent(password, 'blur', blurField);
	addEvent(password, 'keydown' , kdo);
}

// function to add events to the page in a cross-browser manner
function addEvent(objObject, strEventName, fnHandler) { 
	// DOM-compliant way to add an event listener 
 	if (objObject.addEventListener) {
		objObject.addEventListener(strEventName, fnHandler, false); 
	}
	// IE/windows way to add an event listener 
	else if (objObject.attachEvent) {
		objObject.attachEvent('on' + strEventName, fnHandler); 
	}
}

addEvent(window,'focus',setupLogin);
addEvent(window,'keyup',setupLogin);
addEvent(window,'mouseup',setupLogin);
addEvent(window,'load',setupLogin);