var ns4;
ns4 = navigator.appName
if(ns4 == "Netscape") { ns4=true; } else { ns4=false; };

var layerRef = (ns4) ? "document" : "document.all";
var styleRef = (ns4) ? "" : ".style";

var showNav = 0;
var imageDir = '/resources/images/';

function swap_over(textimg, description) {
	if(document.images)  {
	if(textimg != '') {document[textimg].src = imageDir + textimg + '_over.gif';}
	window.status = description;
	}
}
function swap_out(textimg) {
	if(document.images)  {
	if(textimg != '') {document[textimg].src = imageDir + textimg + '.gif';}
	window.status = '';
	}
}