Stas, 
take a look here
http://www.javascriptkit.com/script/script2/plugindetect.shtml
haven't tried it myself but they claim it works in IE and NS...

hth
Phil
>-----------------------------------------
> Hi guys!
 
 
My question is about Adobe Acrobat Reader. Is there a way to detect if
Acrobat is installed on client's mashine using javascript.
Please let me know if you have any ideas, it's urgent.
 
 
Thanks in advance
Stas