var ie = 0;
var nc = 0;
var mac = 0;
var version = navigator.appVersion.substring(0,3);

if(navigator.userAgent.indexOf("Mac")!= -1)
	mac=1;

if(navigator.appName.indexOf("Netscape") != -1)
	nc=1;
else
	ie=1;

if(mac)
	document.write('<link href="style/ie.css" rel="styleSheet" type="text/css">');
else {
	if(nc) {
		if (version >= 5)
			document.write('<link href="style/ie.css" rel="styleSheet" type="text/css">');
		else
			document.write('<link href="style/nc.css" rel="styleSheet" type="text/css">');
	}
	else
		document.write('<link href="style/ie.css" rel="styleSheet" type="text/css">');
}