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) {
		app_over = newImage("images/app-over.gif");
		prequal_over = newImage("images/prequal-over.gif");
		calc_over = newImage("images/calc-over.gif");
		veterans_over = newImage("images/veterans-over.gif");
		relocations_over = newImage("images/relocations-over.gif");
		advantage_over = newImage("images/advantage-over.gif");
		market_over = newImage("images/market-over.gif");
		rate_tracker_over = newImage("images/rate_tracker-over.gif");
		newsletter_over = newImage("images/newsletter-over.gif");
		ask_us_over = newImage("images/ask_us-over.gif");
		improve_over = newImage("images/improve-over.gif");
		links_over = newImage("images/links-over.gif");
		testimonials_over = newImage("images/testimonials-over.gif");
		preloadFlag = true;
	}
}