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_on_over = newImage("images/home_off.gif");
about_on_over = newImage("images/about_off.gif");
contact_on_over = newImage("images/contact_off.gif");
testimonials_on_over = newImage("images/testimonials-off.gif");
masters_on_over = newImage("images/masters_off.gif");
superbowl_on_over = newImage("images/superbowl_off.gif");
cowboys_on_over = newImage("images/cowboys_off.gif");
steelers_on_over = newImage("images/steelers_off.gif");
nba_asg_on_over = newImage("images/nba-asg_off.gif");
hof_on_over = newImage("images/hof_off.gif");
preloadFlag = true;
	}
}