JavaScript - Ip Ban Protection

I recently paste the ip ban java script found on this link http://www.javascriptkit.com/script/.../blockip.shtml on my network.

But, the problem is that the script is banning everybody including me.

I was able to unban myself after much search on google & gain access to my network. I re-edited the code by including and specifying the ip of the spammer's in the indicated field. But, after implementing the code on my network, i keep recieving this message " your ip has been ban" and i will be redirected to google.com

Any help on how to go about this or is there programming mistake with the script?

Thanks from Tem