if (document.images) {
	abouton = new Image;
	abouton.src = "/common/images/navigation/about-over.gif";
	aboutoff = new Image;
	aboutoff.src = "/common/images/navigation/about.gif";
	aboutsel = new Image;
	aboutsel.src = "/common/images/navigation/about-sel.gif";

	newson = new Image;
	newson.src = "/common/images/navigation/news-over.gif";
	newsoff = new Image;
	newsoff.src = "/common/images/navigation/news.gif";
	newssel = new Image;
	newssel.src = "/common/images/navigation/news-sel.gif";

	standardson = new Image;
	standardson.src = "/common/images/navigation/standards-over.gif";
	standardsoff = new Image;
	standardsoff.src = "/common/images/navigation/standards.gif";
	standardssel = new Image;
	standardssel.src = "/common/images/navigation/standards-sel.gif";

	programson = new Image;
	programson.src = "/common/images/navigation/programs-over.gif";
	programsoff = new Image;
	programsoff.src = "/common/images/navigation/programs.gif";
	programssel = new Image;
	programssel.src = "/common/images/navigation/programs-sel.gif";

	documentson = new Image;
	documentson.src = "/common/images/navigation/documents-over.gif";
	documentsoff = new Image;
	documentsoff.src = "/common/images/navigation/documents.gif";
	documentssel = new Image;
	documentssel.src = "/common/images/navigation/documents-sel.gif";

	linkson = new Image;
	linkson.src = "/common/images/navigation/links-over.gif";
	linksoff = new Image;
	linksoff.src = "/common/images/navigation/links.gif";
	linkssel = new Image;
	linkssel.src = "/common/images/navigation/links-sel.gif";

	contacton = new Image;
	contacton.src = "/common/images/navigation/contact-over.gif";
	contactoff = new Image;
	contactoff.src = "/common/images/navigation/contact.gif";
	contactsel = new Image;
	contactsel.src = "/common/images/navigation/contact-sel.gif";

}

function img_on(imgName) {
	if (document.images) {
    	imgOn = eval(imgName + "on.src");
        document [imgName].src = imgOn;
	}
}

function img_off(imgName) {
	if (document.images) {
    	imgOff = eval(imgName + "off.src");
        document [imgName].src = imgOff;
	}
}

function img_sel(imgName) {
	if (document.images) {
	imgSel = eval(imgName + "sel.src");
	document [imgName].src = imgSel;
	}
}