Right i really dont know your code that well, the way you do it is quite different to most and there is a script alert that i dont know anything about so i cant help with that bit.... when i said the '//display voting system, whatever it is ' you have to put the code that displays the system in that part of the code.

If you go into your browser and see if your cookie is set to make sure the first bit of code is working and then check that your IP is that value that is being stored.

My suggestion is to take out your code bit by bit until you get to stage of it working, then build the other bits in and see where it crashes.