Making a regen script? [closed]

How could I create a regen script? I am using the one here:

---Place this INSIDE the model. Don't replace the model name or anything.
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object = script.Parent 
if (object ~= nil) and (object ~= game.Workspace) then 
model = object 
messageText = "regenerating " .. model.Name .. "" 

message = Instance.new("Message") 
message.Text = messageText 
backup = model:clone() -- Make the backup 
waitTime = 255 --Time to wait between regenerations 
wait(math.random(0, waitTime)) 
while true do 
wait(waitTime) -- Regen wait time 

message.Parent = game.Workspace 
model:remove() 

wait(2.5) -- Display regen message for this amount of time 

model = backup:clone() 
model.Parent = game.Workspace 
model:makeJoints() 
message.Parent = nil 
end 
end 
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I don't want a message to be displayed and so it regenerates without a message on your screen. I tried deleting and modifying a few text lines to no avail.

Help would be greatly appreciated!

Also, please be very specific as I am a huge noob to Lua.