Running script in background

Hi,
I wrote a KSH script and running it on HP-UX machine
I am running one script in background.
My script is at location

$HOME/myScript/test/background_sh

When I view my script in background with psu commend

 >  psu | grep background_sh

I see following output

     UID   PID  PPID  C    STIME TTY       TIME COMMAND
<user>  1234    1     9 19:50:04 pts/7     0:00 /usr/bin/ksh /abc/def/myScript/test/background_sh

Now If i move this script to different location say
$HOME/myScript/newDir/background_sh

and execute script again and try to see it in background with same psu command, i see following output

     UID   PID  PPID  C    STIME TTY       TIME COMMAND
<user>  4321    1     9 19:58:04 pts/7     0:00 /usr/bin/ksh /abc/def/myScript/newDir/background_sh

Basically, i don't want to see the full path when i use psu commend to see my script in background, and i want to see my script something like following

     UID   PID  PPID  C    STIME TTY       TIME COMMAND
<user>  4321    1     9 19:58:04 pts/7     0:00 background_sh

How i can achieve this?

According to my tests only binaries show only their name.
Any script will show its full path, optinally with a leading bash .

My test was:
cat everything that is shown with a full path.
I reckognized that sleep (content of my bgscript), ps, bash and ffplay (playing music) are beeing listed without path.
/usr/lib/xorg-server/Xorg is a script on my system, and therefor is listed with its full path.

hth