var keep = false;
function ToggleLoginPanel()
{
	var LoginPanel = document.getElementById ('LoginPanel');
	if (LoginPanel)
	{
		var display = LoginPanel.style.display;
		if (display == 'none' || !display)
		{
			LoginPanel.style.display = 'block';
			var LoginInput = document.getElementById ('user_mail');
			if (LoginInput) LoginInput.focus();
			
			keep = true;
			document.onclick = CloseLoginPanel;
			document.onkeydown = EscapeLoginPanel;
	
			var UsernameField = document.getElementById ('user_mail');
			var PasswordField = document.getElementById ('user_password');
			var SessionSubmit = document.getElementById ('SessionSubmit');
			LoginPanel.onclick = Keep;
		}
		else
		{
			LoginPanel.style.display = 'none';
		}
		return false;
	}
	else return true;	
}

function Keep()
{
	keep = true;
}

function CloseLoginPanel (event)
{
	if (keep)
	{
		keep = false;
		return;
	}
	var LoginPanel = document.getElementById ('LoginPanel');
	if (!LoginPanel) return;
	LoginPanel.style.display = 'none';

	document.onclick = null;
	document.onkeydown = null;
}

function EscapeLoginPanel (event)
{
	if (window.event) event = window.event;
	var code = event.keyCode ? event.keyCode : event.which ? event.which : null;
	if (code == 27)
	{
		var LoginPanel = document.getElementById ('LoginPanel');
		if (!LoginPanel) return;
		LoginPanel.style.display = 'none';

		document.onclick = null;
		document.onkeydown = null;
	}
}

function TestLogin()
{
	var UsernameField = document.getElementById ('user_mail');
	var PasswordField = document.getElementById ('user_password');
	var SessionSubmit = document.getElementById ('SessionSubmit');
	if (!UsernameField || !PasswordField || !SessionSubmit) return;

	SessionSubmit.disabled = !UsernameField.value || !PasswordField.value; 
}