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) {
		
		_online_estimate = newImage("images/online_estimate_on.gif");
		_aboutus = newImage("images/aboutus_on.gif");
		_whycnyx = newImage("images/whycnyx_on.gif");
		_links = newImage("images/links_on.gif");
		_pricing = newImage("images/pricing_on.gif");
		_payment = newImage("images/payment_on.gif");
		_pickup_delivery= newImage("images/pickup_delivery.gif");
		_packinginfo = newImage("images/packinginfo_on.gif");
		_storage = newImage("images/storage_on.gif");
		_insurance = newImage("images/insurance_on.gif");
		_referrals = newImage("images/referrals.gif");
		_contactus = newImage("images/contactus.gif");
		preloadFlag = true;
	}
}