On Mon, 6 Jan 2003 13:50:02 -0500, Adam <adam at hallinteractive.com> wrote: > MSIE 5.[0-4]{1}[0-9]* > Will this be 5.0 only and not 5.5? > > thanks again for any help. > > Adam Leon > Pupilchoke Design > http://www.pupilchoke.com > http://www.tonguesnthumbs.net > Yes, because it is looking specifically for an agent string that starts with 5.0, 5.1, 5.2, 5.3, 5.4, then any assortment of 0-9 that appears afterwards. If I wanted to include 5.5, I would make it MSIE 5.[0-9]* Reg exp pattern syntax: http://www.php.net/manual/en/pcre.pattern.syntax.php -- sasha