how to configure $PATH for root?

hi, I need to login as root for some tasks. After login, I re-configured the PATH. PATH=$PATH:/home/jl/bin:/usr/local/bin:/usr/bin:/usr/X11R6/bin:/bin:/usr/games:/opt/gnome/bin:/opt/kde3/bin problem is, after logoff to normal user, then I swith to root. the PATH goes back to the original one: echo $PATH /usr/sbin:/bin:/usr/bin:/sbin:/usr/X11R6/bin how can I change it permanently?