if ((navigator.appVersion.indexOf("Mac") != -1)) {      // Mac
	if ((navigator.appName.indexOf("Netscape") != -1) && (document.all?(document.getElementById?3:2):(document.getElementById?4:(document.layers?1:0)) == 1)) { // Windows NN
		document.write("<link rel='stylesheet' href='../css/mac_nn4.css' type='text/css'>"); 
	} else {
		document.write("<link rel='stylesheet' href='../css/mac.css' type='text/css'>");
	}
} else if ((navigator.appName.indexOf("Netscape") != -1)) { // Windows NN
    document.write("<link rel='stylesheet' href='../css/win_nn.css' type='text/css'>");
} else {    // Windows IE
    document.write("<link rel='stylesheet' href='../css/win.css' type='text/css'>");
}