if (navigator.appVersion.indexOf('Mac') > -1) {
	//mac
	if (navigator.appName.charAt(0)=="N") {
		//NetScape
		document.write('<LINK REL="styleSheet" TYPE="text/css" HREF="../css/macns.css">');
	} else {
		//IE
		document.write('<LINK REL="styleSheet" TYPE="text/css" HREF="../css/macie.css">');
	}
} else {
	//windows or unix
	if (navigator.appName.charAt(0)=="N") {
		//NetScape
		document.write('<LINK REL="styleSheet" TYPE="text/css" HREF="../css/winns.css">');
	} else {
		//IE
		document.write('<LINK REL="styleSheet" TYPE="text/css" HREF="../css/winie.css">');
	}
}