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];
		}
	}
}

function mOver(image, dir) {
	if (document.images && (preloadFlag == true)) {
		document[image].src = '/images/' + dir + image + '-over.gif';
	}
	return true;
}

function mOut(image, dir) {
	if (document.images && (preloadFlag == true)) {
		document[image].src = '/images/' + dir + image + '.gif';
	}
	return true;
}

function mOverDot(image) {
	if (document.images && (preloadFlag == true)) {
		document[image].src ="/images/leftnav3/bar-over.gif";
	}
	return true;
}
function mOutDot(image) {
	if (document.images && (preloadFlag == true)) {
		document[image].src ="/images/leftnav3/bar.gif";
	}
	return true;
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		topnav_commercial_over = newImage("/images/topnav/b_commercial-over.gif");
		topnav_specialty_over = newImage("/images/topnav/b_specialty-over.gif");
		topnav_realestate_over = newImage("/images/topnav/b_realestate-over.gif");
		topnav_residential_over = newImage("/images/topnav/b_residential-over.gif");
		leftnav_dot_over = newImage("/images/leftnav3/bar-over.gif");
		preloadFlag = true;
	}
}