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

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

function changeImages() {
	changeImagesArray(changeImages.arguments);
}

function toggleImages() {
	for (var i=0; i<toggleImages.arguments.length; i+=2) {
		if (selected == toggleImages.arguments[i])      changeImagesArray(toggleImages.arguments[i+1]);
	}
}

var selected = '';
var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		bnr02over04 = newImage(basePath + "bnr02over-04.jpg");
		bnr02over = newImage(basePath + "bnr02over.jpg");
		bnr03over08 = newImage(basePath + "bnr03over-08.jpg");
		bnr03over = newImage(basePath + "bnr03over.jpg");
		bnr05over = newImage(basePath + "bnr05over.gif");
		bnr05 = newImage(basePath + "bnr05.gif");
		bnr05over16 = newImage(basePath + "bnr05over-16.gif");
		preloadFlag = true;
	}
}

function m21OnMouseOver() {
	changeImages('bnr02', basePath + 'bnr02over.jpg', 'bnr03', basePath + 'bnr03over.jpg', 'bnr05', basePath + 'bnr05over.gif');
	return true;
}

function m21OnMouseOut() {
	changeImages('bnr02', basePath + 'bnr02over-04.jpg', 'bnr03', basePath + 'bnr03over.jpg', 'bnr05', basePath + 'bnr05.gif');
	return true;
}

function m22OnMouseOver() {
	changeImages('bnr02', basePath + 'bnr02over-04.jpg', 'bnr03', basePath + 'bnr03over-08.jpg', 'bnr05', basePath + 'bnr05over-16.gif');
	return true;
}

function m22OnMouseOut() {
	changeImages('bnr02', basePath + 'bnr02.jpg', 'bnr03', basePath + 'bnr03.jpg', 'bnr05', basePath + 'bnr05over-16.gif');
	return true;
}