function writeStyleSheet(dds) {
   // set up css links
   var stylesheet = new Array(); var sel = 0;
   stylesheet[0] = '<LINK REL="stylesheet" TYPE="text/css" HREF="' + dds + 'includes/style.css">';          // ie or ns6 on win or mac
   stylesheet[1] = '<LINK REL="stylesheet" TYPE="text/css" HREF="' + dds + 'includes/style_win_ns.css">';   // win ns4+ fonts generally smaller
   stylesheet[2] = '<LINK REL="stylesheet" TYPE="text/css" HREF="' + dds + 'includes/style_mac_ns.css">';   // mac ns4+ fonts generally larger
   // detect
   if (navigator.appName=="Netscape") {
      if ( (navigator.userAgent.indexOf('Netscape6') > 0) || (navigator.userAgent.indexOf('Gecko') > 0) )  version = "NS6";
      else version="NS";
   } else { version="IE"; }
   if (navigator.platform != "Win32" && navigator.platform != "MacPPC") iePlatform = false; else iePlatform = true;
   // write to browser
   if ((version=="IE" && iePlatform) || (version=="NS6")) sel = 0; 
   else if (navigator.platform == "Win32") sel = 1;
   else sel = 2;
   document.write(stylesheet[sel]); 
   // alert(stylesheet[sel] + '\n' + navigator.userAgent + '\nversion: ' + version + '\n' + iePlatform);
}
writeStyleSheet(dds);