if (document.images)
{
	qualityon = new Image();
	qualityon.src = "/images/nav/quality_on.gif";
	qualityoff = new Image();
	qualityoff.src = "/images/nav/quality.gif";
	
	kitson = new Image();
	kitson.src = "/images/nav/kits_on.gif";
	kitsoff = new Image();
	kitsoff.src = "/images/nav/kits.gif";
	
	portfolioon = new Image();
	portfolioon.src = "/images/nav/portfolio_on.gif";
	portfoliooff = new Image();
	portfoliooff.src = "/images/nav/portfolio.gif";
	
	historyon = new Image();
	historyon.src = "/images/nav/history_on.gif";
	historyoff = new Image();
	historyoff.src = "/images/nav/history.gif";
	
	inquiryon = new Image();
	inquiryon.src = "/images/nav/inquiry_on.gif";
	inquiryoff = new Image();
	inquiryoff.src = "/images/nav/inquiry.gif";
}
	
function carveIn(imageName)
{
	if(document.images)
	{
		document[imageName].src = eval (imageName + "on.src");
	}
}

function carveOut(imageName)
{
	if(document.images)
	{
		document[imageName].src = eval(imageName + "off.src");
	}
}