contacton = new Image();
	contacton.src = "images/contact-over.gif";
	industryon = new Image();
	industryon.src = "images/industry-over.gif";
	newson = new Image();
	newson.src = "images/news-over.gif";
	portfolioon = new Image();
	portfolioon.src = "images/portfolio-over.gif";
	serviceon = new Image();
	serviceon.src = "images/service-over.gif";
	retailon = new Image();
	retailon.src = "images/tr_retail_over.gif";
	consultingon = new Image();
	consultingon.src = "images/tr_consult_over.gif";
	historyon = new Image();
	historyon.src = "images/tr_history_over.gif";
	
	contactoff = new Image();
	contactoff.src = "images/contact.gif";
	industryoff = new Image();
	industryoff.src = "images/industry.gif";
	newsoff = new Image();
	newsoff.src = "images/news.gif";
	portfoliooff = new Image();
	portfoliooff.src = "images/portfolio.gif";
	serviceoff = new Image();
	serviceoff.src = "images/service.gif";
	retailoff = new Image();
	retailoff.src = "images/tr_retail.gif";
	consultingoff = new Image();
	consultingoff.src = "images/tr_consult.gif";
	historyoff = new Image();
	historyoff.src = "images/tr_history.gif";
	
	function imgOn(imgName) {
		document[imgName].src = eval(imgName + "on.src");
	}
	
	function imgOff(imgName) {
		document[imgName].src = eval(imgName + "off.src");
	}

	function LinkDescribe(string) {
		navexplain.innerHTML = string;
	}