[FGS] Maximum execution time

[julien.63 at free.fr]

Hi,
i'm working with fgs-mapserver using php_mapscript. When i try to display my
page i have this error :

Fatal error: Maximum execution time of 30 seconds exceeded in
/home/julien/fgs/www/htdocs/9/phpms_fifth.php on line 644

i think the problem occur around : $image=$map->draw();

i've looked in the log file but it seems ok
access_log :
127.0.0.1 - - [24/May/2006:17:14:04 -0500] "GET /9/phpms_fifth.php HTTP/1.1" 200
167

error_log : nada

where can i have some more info about what's wrong?

thx

Julien