if (document.images) {
// Active Images
img1on = new Image();
img1on.src = "/images/nav_about_on.gif";
img2on = new Image();
img2on.src = "/images/nav_news_on.gif";
img3on = new Image();
img3on.src = "/images/nav_careers_on.gif";
img4on = new Image();
img4on.src = "/images/nav_whatwedo_on.gif";
img5on = new Image();
img5on.src = "/images/nav_suppliers_on.gif";
img6on = new Image();
img6on.src = "/images/nav_contact_on.gif";

img1off = new Image();
img1off.src = "/images/nav_about_off.gif";
img2off = new Image();
img2off.src = "/images/nav_news_off.gif";
img3off = new Image();
img3off.src = "/images/nav_careers_off.gif";
img4off = new Image();
img4off.src = "/images/nav_whatwedo_off.gif";
img5off = new Image();
img5off.src = "/images/nav_suppliers_off.gif";
img6off = new Image();
img6off.src = "/images/nav_contact_off.gif";

}
// Function to 'activate' images.
function imgOn(imgName) {
	if (document.images) {
	    document[imgName].src = eval(imgName + "on.src");
	}
}

// Function to 'deactivate' images.
function imgOff(imgName) {
	if (document.images) {
	    document[imgName].src = eval(imgName + "off.src");
	}
}