MapServer CGI : Url encoding of negative values for mapext parameter ?

[Laurent Jégou]

Hi, a simple question this time :

I'm generating 36x18 ten degrees squares maps with (UMN genuine) 
MapServer, using php to generate <img src=" MapServer cgi calls. So i 
use the cgi variable mapext=. Example of sch an url :

http://localhost/cgi-bin/mapserver.exe?mode=map&map=my_path_to_mapfile.map&mapext=10+40+20+50

But it's not working when negative values occurs, and since the spatial 
reference is lat/long wgs84, there are some negatives...

Anyone can help me to find the right url syntax for the mapext paramater ?

-- 
Laurent Jégou
IGE Cartographe
UTM - Dépt. Géographie
31058 TOULOUSE Cedex 9 - 05.61.50.43.89
http://www.univ-tlse2.fr/geoprdc
http://www.geotests.net/blog