if (document.images) {
	teston = new Image(); // Active images
	teston.src = "/images/promotions/sell_your_aircraft_1.gif";
	testoff = new Image(); // Inactive images
	testoff.src = "/images/promotions/sell_your_aircraft_0.gif";
}

function imgOn(imgName) {
	if (document.images) {
		document[imgName].src = eval(imgName + "on.src");
	}
}

function imgOff(imgName) {
	if (document.images) {
		document[imgName].src = eval(imgName + "off.src");
	}
}