var ie_css = '/scripts/German/win_ie.css';
  var ns_css = '/scripts/German/win_ns.css';
  var mac_css= '/scripts/German/mac_ns.css';
  var style = '<link rel="STYLESHEET" type="text/css" href="';
  //Bei Netscape 4.5 / 4.7 und Ie 4.5 auf Mac
  if ((((navigator.appVersion.indexOf("4.5")!=-1 ) || (navigator.appVersion.indexOf("4.7")!=-1 )) && (navigator.appVersion.indexOf("Mac")!=-1)))
  {
     document.writeln(style+ mac_css + '">');
  }
  else if (navigator.appVersion.indexOf("Linux") != -1 || navigator.appVersion.indexOf("X11") != -1 || navigator.appVersion.indexOf("Unix") != -1)
  {
     document.writeln(style+ mac_css + '">');
  }
  else if (navigator.appName.indexOf("Microsoft") != -1)
  {
   document.writeln(style + ie_css + '">');
  }	
  else
  {
   document.writeln(style + ns_css + '">');
  }