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) {
		home_over = newImage("http://www.thestormtrack.com/templateimages/home-over.gif");
		charts_over = newImage("http://www.thestormtrack.com/templateimages/charts-over.gif");
		reference_over = newImage("http://www.thestormtrack.com/templateimages/reference-over.gif");
		archives_over = newImage("http://www.thestormtrack.com/templateimages/archives-over.gif");
		about_over = newImage("http://www.thestormtrack.com/templateimages/about-over.gif");
		contact_over = newImage("http://www.thestormtrack.com/templateimages/contact-over.gif");
		messageboard_over = newImage("http://www.thestormtrack.com/templateimages/messageboard-over.gif");
		preloadFlag = true;
	}
}