var browser='unbekannt';
var os='unbekannt';
if(navigator.userAgent.indexOf('Windows NT 5.0')>-1||navigator.userAgent.indexOf('Windows 2000')>-1)os='Windows 2000';
else if(navigator.userAgent.indexOf('Windows NT 5.1')>-1)os='Windows XP';
else if(navigator.userAgent.indexOf('NT4')>-1)os='Windows NT4';
else if(navigator.userAgent.indexOf('Windows 95')>-1)os='Windows 95';
else if(navigator.userAgent.indexOf('Windows 98')>-1&&navigator.userAgent.indexOf('Win 9x 4.90')>-1)os='Windows ME';
else if(navigator.userAgent.indexOf('Windows 98')>-1)os='Windows 98';
else if(navigator.userAgent.indexOf('Macintosh')>-1)os='Macintosh';
else if(navigator.userAgent.indexOf('Mac_PowerPC')>-1)os='Macintosh';
else if(navigator.userAgent.indexOf('Linux')>-1)os='Linux';
else if(navigator.userAgent.indexOf('Linux 2.2')>-1)os='Linux 2.2.x';
else if(navigator.userAgent.indexOf('Linux 2.4')>-1)os='Linux 2.4.x';
else if(navigator.userAgent.indexOf('OS/2')>-1)os='OS/2';
else if(navigator.userAgent.indexOf('Unix')>-1)os='Unix';
else if(navigator.userAgent.indexOf('X11')>-1)os='Linux X11';

if(navigator.userAgent.indexOf('Mozilla/2')>-1)browser='Netscape 2.x';
if(navigator.userAgent.indexOf('Mozilla/3')>-1)browser='Netscape 3.x';
if(navigator.userAgent.indexOf('Mozilla/4')>-1)browser='Netscape 4.x';
if(navigator.userAgent.indexOf('Mozilla/4.75')>-1)browser='Netscape 4.75';
if(navigator.userAgent.indexOf('MSIE/2')>-1)browser='Internet Explorer 2.x';
if(navigator.userAgent.indexOf('MSIE/3')>-1)browser='Internet Explorer 3.x';
if(navigator.userAgent.indexOf('MSIE/4')>-1)browser='Internet Explorer 4.x';
if(navigator.userAgent.indexOf('MSIE/5.0')>-1)browser='Internet Explorer 5.0';
if(navigator.userAgent.indexOf('MSIE 5.0')>-1)browser='Internet Explorer 5.0';
if(navigator.userAgent.indexOf('MSIE/5.01')>-1)browser='Internet Explorer 5.01';
if(navigator.userAgent.indexOf('MSIE 5.5')>-1)browser='Internet Explorer 5.5';
if(navigator.userAgent.indexOf('MSIE/5.5')>-1)browser='Internet Explorer 5.5';
if(navigator.userAgent.indexOf('MSIE 6.0')>-1)browser='Internet Explorer 6.0';
if(navigator.userAgent.indexOf('Gecko')>-1)browser='Mozilla';

if(navigator.userAgent.indexOf('Opera')>-1)browser='Opera';
if(navigator.userAgent.indexOf('Opera 5')>-1||navigator.userAgent.indexOf('Opera/5')>-1)browser='Opera 5.x';
if(navigator.userAgent.indexOf('Opera 6')>-1||navigator.userAgent.indexOf('Opera/6')>-1)browser='Opera 6.x';
if(navigator.userAgent.indexOf('AOL 4.0')>-1)browser='AOL 4.0';
if(navigator.userAgent.indexOf('AOL 5.0')>-1)browser='AOL 5.0';
if(navigator.userAgent.indexOf('AOL 6.0')>-1)browser='AOL 6.0';
if(navigator.userAgent.indexOf('AOL 7.0')>-1)browser='AOL 7.0';
if(navigator.userAgent.indexOf('Konqueror-2')>-1)browser='Konqueror-2.x';
if(navigator.userAgent.indexOf('Konqueror/2.1.2')>-1)browser='Konqueror 2.1.2';
if(navigator.userAgent.indexOf('Konqueror')>-1)browser='Konqueror';