function showhide(toggle, toggle2) {
	if (document.getElementById) { // DOM3 = IE5, NS6
		document.getElementById('portfoliodescription').style.visibility = toggle;
		document.getElementById('pagecontainer').style.visibility = toggle2;
		document.getElementById('portfoliomenu').style.visibility = toggle2;
	} else {
		if (document.layers) { // Netscape 4
			document.portfoliodescription.visibility = toggle;
			document.pagecontainer.visibility = toggle2;
			document.portfoliomenu.visibility = toggle2;
		} else { // IE 4
			document.all.portfoliodescription.style.visibility = toggle;
			document.all.pagecontainer.style.visibility = toggle2;
			document.portfoliomenu.visibility = toggle2;
		}
	}
}