browser_name = navigator.appName;
browser_version = parseFloat(navigator.appVersion); 

function turnon(x) {
	if (browser_name == "Netscape" && browser_version >= 3.0 || browser_name == "Microsoft Internet Explorer" && browser_version >= 4.0) {
		if (x == 1) {
			document.commercial.src = "/images/watch_on.gif";
		}
		if (x == 2) {
			document.main.src = "/images/main_on.jpg";
		}
		if (x == 3) {
			document.order.src = "/images/order_now_on.gif";
		}
		if (x == 4) {
			document.order2.src = "/images/order_now_2_on.gif";
		}
		if (x == 5) {
			document.start_now.src = "/images/start_on.gif";
		}
		if (x == 6) {
			document.one.src = "/images/one_free_on.gif";
		}
		if (x == 7) {
			document.free.src = "/images/free_shipping_on.gif";
		}
		if (x == 8) {
			document.try_now.src = "/images/try_now_on.gif";
		}
		if (x == 9) {
			document.join.src = "/images/join_on.gif";
		}
	}
}

function turnoff(x) {
	if (browser_name == "Netscape" && browser_version >= 3.0 || browser_name == "Microsoft Internet Explorer" && browser_version >= 4.0) {
		if (x == 1) {
			document.commercial.src = "/images/watch.gif";
		}
		if (x == 2) {
			document.main.src = "/images/main.jpg";
		}
		if (x == 3) {
			document.order.src = "/images/order_now.gif";
		}
		if (x == 4) {
			document.order2.src = "/images/order_now_2.gif";
		}
		if (x == 5) {
			document.start_now.src = "/images/start.gif";
		}
		if (x == 6) {
			document.one.src = "/images/one_free.gif";
		}
		if (x == 7) {
			document.free.src = "/images/free_shipping.gif";
		}
		if (x == 8) {
			document.try_now.src = "/images/try_now.gif";
		}
		if (x == 9) {
			document.join.src = "/images/join.gif";
		}
	}
}