if( navigator.appName == "Netscape" && parseInt(navigator.appVersion) == 4 && navigator.platform == "Win32") {
   document.write("<LINK REL=stylesheet HREF=../css/nn.css TYPE=\"text/css\">"); }
else if ((navigator.appVersion.indexOf("Mac")!=-1) && (navigator.appVersion.indexOf("MSIE")==-1)){
	document.write("<LINK REL=stylesheet HREF=../css/macnn.css TYPE=\"text/css\">");
	}