BASH function: Relaunch launchitem

I needed a quick way of stopping and starting a launch item. Rather than the usual process of launchctl unload /item; launchctl load /item. So I put a function in my .bash_rc:

function relaunch()
echo "Unloading ${launchitem}..."
sudo launchctl unload "${launchitem}" 
sleep 5
echo "Loading ${launchitem}..."
sudo launchctl load "${launchitem}"

Now I can do:

relaunch /Library/LaunchDaemons/theitem.plist

and it will stop the item, wait 5, then load the item.