Scripted Image for reimaging

I'm reimaging alot of computers this summer, and keep running into
headaches. I'm renaming most of the computers and this is where the
problem is coming in. One the machine runs the image, and renames the
computer, it tries to reimage again. Here's what I'm doing in a nutshell.


ZISNAME=`zisview computername`

echo "This computer's name is = "$ZISNAME
echo -n "Please enter the workstation name: "
read ZISNAME;
setterm -clear

zisedit -c
zisedit N=$ZISNAME

zisedit justimaged=true

img rp 10.10.10.1 \10.10.10.1/vol1/zenworks/images/sysprep.zmg

I want to clear out all the old ZIS info, but don't want to have to cancel
pxe after the machine reboots.