var p = document.getElementById('portfolio_link');
var l = document.getElementById('portfolio_choices');
var t = null;

var revealMenuNow = function() {
	l.style.display = '';
	stopMenuTimeout();
}

var hideMenuNow = function() {
	l.style.display = 'none';
	stopMenuTimeout();
}

var stopMenuTimeout = function() {
	window.clearTimeout(t);
}

var startMenuTimeout = function() {
	t = window.setTimeout("l.style.display='none';", 1500);
}

function openCredits() {
	window.open('credits','','width=288,height=493,scrollbars=no,toolbars=no');
}