My scripts are free to use

I dont want paying for them, although I would like you to leave my web-site address in the script comment

You can use them on a commercial website, you can use them on a personal web site. You can even use them on an intranet - or just to see how things are done.

I do not give permission for you to sell these scripts as your own ... in other words - do not make money off my work

There is no warranty of any kind on these scripts - if they work in your environment, then all well and good. If they don't - I am sorry, but at least you have a starting point to get something that does do what you want.

Regardless of what happens as a result of using my scripts, my liability will be limited to a full refund of the price paid to me for the scripts i.e. nothing.

If you don't like these terms - I am not forcing you to use these scripts.