check_OS= navigator.userAgent.indexOf;
browser_type = navigator.appName;
if (browser_type == "Netscape" && (check_OS = "Mac")) {
document.write("<LINK Href='/styles/site_text_nsmac.css' Rel='styleSheet' Type='text/css'>");
} 
else {
document.write("<LINK Href='/styles/site_text.css' Rel='styleSheet' Type='text/css'>");
}