[@_ck_ Participant 16 years, 11 months ago]

There already is a function is_front()

if (is_front()) {

// do stuff

}

lots of related functions in template-functions.php

if you need multiple pages, a trick I like to use is

if (in_array(bb_get_location(),array('topic-page','tag-page','forum-page'))) {

// do stuff

}