var old_style = false;
if (navigator.appName.match(/netscape/i) != null) {
   var x = parseInt(window.navigator.appVersion);
   if (x < 5) old_style = true;
}
if (old_style) {
document.writeln('<br><font color="#ffcc99"><h1>You are using Netscape 4.x. This browser is not capable of handling our order system.');
      document.writeln('There is a new version of <font color="#ffffff"><a href="http://www.firefox-browser.de">Netscape/Mozilla</a></font> available.');
document.writeln('If you prefer using your old browser version, you have to order by <img src="images/orderlink.png" width="155" height="15" align="middle" border="0" />.<br>');
}