copyright script -- PLEASE

I've noticed some free scripts which have a commented copyright line so that if you get rid of that line, the whole script doesn't work. I've noticed it on both dynamicdrive and javascriptkit.
I'd like to add a credits line like that on my own scripts. Could somebody please tell me how, ASAP
:confused: ?
thanx :)

(SHHHH!! Secret!!!!):rolleyes: :eek: :eek:
The code will work with out those lines

Well you can encode your script using an encoder. Check for such downloads at http://msdn.microsoft.com/scripting

i downloaded the encoder and it's great. thanx VERY MUCH :)