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.stephen.src = "/images/stephen_on.gif";
		}
		if (x == 2) {
			document.ashley.src = "/images/ashley_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.stephen.src = "/images/stephen.gif";
		}
		if (x == 2) {
			document.ashley.src = "/images/ashley.gif";
		}
	}
}