function $ (element)
{
	return document.getElementById(element);
}

if (window != top) top.location.href = location.href;

function loginValid(sender)
{
	var errors = "";
	if ($("username").value == "") errors += " - Missing your username\n";
	if ($("password").value == "") errors += " - Missing your password\n";

	if (errors != "")
	{
		alert("You need to fill in the following:\n"+errors);
		return false;
	}
	else
	{
		return true;
	}
}