cssForWinNS = "/styles/winNS.css";
cssForWinIE = "/styles/winIE.css";
cssForMacNS = "/styles/macNS.css";
cssForMacIE = "/styles/macIE.css";
if((navigator.appVersion.indexOf("Mac")!= -1)){
	if(document.layers){
	   document.write("<link rel='stylesheet' href='" + cssForMacNS + "' type='text/css'>");
	}
	else{
   	   document.write("<link rel='stylesheet' href='" + cssForMacIE + "' type='text/css'>");
	}
}
else{
	if(document.layers){
	   document.write("<link rel='stylesheet' href='" + cssForWinNS + "' type='text/css'>");
	}
	else{
   	   document.write("<link rel='stylesheet' href='" + cssForWinIE + "' type='text/css'>");
	}
}