var konami = new Array(38, 38, 40, 40, 37, 39, 37, 39, 66, 65);
var zork = new Array(88, 89, 90, 90, 89);

var i = 0;
function process_keypress(e)
{
	if(e.keyCode == konami[i])
	{
		if(++i >= konami.length)
		{
			do_konami();
		}
	}
	else
		i = 0;
}

function do_konami()
{
	var element = document.getElementById('pageheader');

	while(element.hasChildNodes())
	{
		element.removeChild(element.firstChild);
	}
	element.style.height = '100';
	element.style.background = 'black';
	element.style.color = 'white';
	// element.parentNode.style.height = '80%';
	element.innerHTML = '<tt>It is pitch black. You are likely to be eaten by a grue.</tt>';
}

document.getElementsByTagName('html')[0].addEventListener("keydown", process_keypress, false);