regex for emoticon codes

i have something like $str = "sometext sometext [emoticon01] sometext [emoticon23] sometext"; i would like to use regex to replace those codes into: sometext sometext /images/emot/01.gif sometext /images/emot/23.gif sometext all numerics after the code "emoticon" consisted of exactly 2 digits; and they are in the range from emoticon01 to emoticon30. i have spent the whole day starring at my crt and reading manpages plus examples. i achieved nothing but sore eyes. i would GREATLY-GREATLY appreciate if someone could gimme a code snippet on how to this sorta thing. best rgds. roger __________________________________________________ Do You Yahoo!? Sign up for SBC Yahoo! Dial - First Month Free http://sbc.yahoo.com