function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}
function changeImages() {
	if (document.images) {
		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) {
		n2 = newImage("Graphics/temp2/Nav-02-o.gif");
		n3 = newImage("Graphics/temp2/Nav-03-o.gif");
		n4 = newImage("Graphics/temp2/Nav-04-o.gif");
		n5 = newImage("Graphics/temp2/Nav-05-o.gif");
		preloadFlag = true;
	}
}