function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {

		nav_pigment_over = newImage("/images/nav_pigment_over.gif");
		locator_pigment_over = newImage("/images/locator_pigment.gif");

		nav_graphite_over = newImage("/images/nav_graphite_over.gif");
		locator_graphite_over = newImage("/images/locator_graphite.gif");

		nav_photo_over = newImage("/images/nav_photo_over.gif");
		locator_photo_over = newImage("/images/locator_photo.gif");

		nav_store_over = newImage("/images/nav_store_over.gif");
		locator_store_over = newImage("/images/locator_store.gif");

		nav_contact_over = newImage("/images/nav_contact_over.gif");
		locator_contact_over = newImage("/images/locator_contact.gif");

		preloadFlag = true;
	}
}